Database: MEDLINE <: biomedical, nursing & dental literature, 1966 - Oct 2000.> Search Strategy (You Saved Citations 1-210 From Set 57): ----------------------------------------------------------------------------- 1 exp Tooth demineralization/ 22653 2 demineralization.mp. 1622 3 caries.mp. 15310 4 caires.mp. 1 5 craies.mp. 0 6 careis.mp. 4 7 carise.mp. 0 8 (teeth adj3 cavit:).mp. 422 9 (tooth adj3 cavit:).mp. 217 10 (dental adj3 cavit:).mp. 276 11 (dentin adj3 cavit:).mp. 255 12 (enamel adj3 cavit:).mp. 182 13 (teeth adj3 decay:).mp. 375 14 (tooth adj3 decay:).mp. 322 15 (dental adj3 decay:).mp. 250 16 (dentin adj3 decay:).mp. 12 17 (enamel adj3 decay:).mp. 20 18 (active adj decay).mp. 9 19 (rampant adj3 decay:).mp. 14 20 (recurrent adj3 decay:).mp. 30 21 (white adj spot:).mp. 510 22 carious.mp. 2082 23 cariology.ti,ab. 56 24 (non-cavitated adj3 lesion:).mp. 15 25 (noncavitated adj3 lesion:).mp. 2 26 Tooth remineralization/ 479 27 (dental adj3 fissure:).mp. 99 28 (tooth adj3 fissure:).mp. 50 29 (teeth adj3 fissure:).mp. 98 30 caries-free.mp. 605 31 cariesfree.mp. 17 32 Cariogenic agents/ 728 33 precavit:.mp. 8 34 (filled adj3 teeth).mp. 511 35 (filled adj3 tooth).mp. 117 36 (oral adj fissure:).mp. 6 37 (tooth adj3 remineraliz:).mp. 28 38 (teeth adj3 remineraliz:).mp. 24 39 dft.mp. 413 40 dfs.mp. 1261 41 dmf:.mp. 6402 42 cariogeni:.mp. 1787 43 or/1-42 32291 44 Dental leakage/ 1854 45 (mineral adj loss).mp. 409 46 or/43-45 34030 47 Fiber optics/ 7856 48 ((fiber or fibre) adj optic:).mp. 1588 49 Transillumination/ 936 50 transillumination.mp. 1397 51 exp Light/ 72339 52 Microradiography/ 1886 53 "DI-FOTI".mp. 1 54 "DIFOTI".mp. 2 55 "FOTI".mp. 18 56 or/47-55 83421 57 46 and 56 810 58 from 57 keep 1-300 300 59 from 57 keep 301-600 300 60 from 57 keep 601-810 210 *************************** <1> UI - 86012766 AU - Laufer G AU - Haber S TI - Numerical analysis of the thermochemical tooth damage induced by laser radiation. SO - Journal of Biomechanical Engineering 1985 Aug;107(3):234-9 AB - A numerical model is developed to predict zones of thermochemical tooth damage induced by laser radiation. Particular attention is devoted to pulp denaturation, enamel fracture and caries sterilization treatment dependence on laser energy and other beam parameters. <2> UI - 85282414 AU - Mitropoulos CM TI - The use of fibre-optic transillumination in the diagnosis of posterior approximal caries in clinical trials. SO - Caries Research 1985;19(4):379-84 <3> UI - 85280145 AU - Mitropoulos CM TI - A comparison of fibre-optic transillumination with bitewing radiographs. SO - British Dental Journal 1985 Jul 6;159(1):21-3 <4> UI - 85260314 AU - Anneroth G AU - Holm LE AU - Karlsson G TI - The effect of radiation on teeth. A clinical, histologic and microradiographic study. SO - International Journal of Oral Surgery 1985 Jun;14(3):269-74 AB - 54 teeth from 20 patients irradiated for treatment of malignant tumors of the head and neck region were examined clinically, histologically and microradiographically. 18 teeth from 8 patients were used as controls. A significantly higher degree of hyposialia, radiation mucositis and atypical caries was found in the original group as compared to the control material. Occurrence of narrow gaps between dentin and cementum was also higher in the former group as compared with the latter. <5> UI - 85273949 AU - Shimura F TI - [Dental health screening using the quantity of transmitted light from laser beams]. [Japanese] SO - Tsurumi Shigaku - Tsurumi University Dental Journal 1985 Jan;11(1):201-17 <6> UI - 85245233 AU - Sundstrom F AU - Fredriksson K AU - Montan S AU - Hafstrom-Bjorkman U AU - Strom J TI - Laser-induced fluorescence from sound and carious tooth substance: spectroscopic studies. SO - Swedish Dental Journal 1985;9(2):71-80 AB - Fluorescence spectra of dentine and enamel illuminated with laser light of wavelengths of 337, 488, 515 and 633 nm respectively were recorded. The fluorescence obtained by illumination with UV laser light at 337 nm had a peak at about 400 nm in dentine as well as enamel. Compared to intact enamel the fluorescence from enamel with initial carious lesions was of lower intensity and had a slight red shift. No fluorescence within the visible range was obtained by illumination with a low power He-Ne laser at 633 nm. Illumination at 488 nm produced fluorescence with a peak at about 540 nm in dentine as well as enamel. The difference in the intensity of fluorescence between sound and carious enamel was generally greater at this wavelength than at any of the others tried, and the red shift from the carious enamel was also more pronounced. Illumination at 515 nm produced fluorescence of similar wavelengths but with much less difference between intact and carious enamel. It was concluded that illumination at 488 nm was the most suitable wavelength of those investigated for the detection of initial carious lesions by the fluorescence technique. <7> UI - 85237122 AU - Myers TD AU - Myers WD TI - The use of a laser for debridement of incipient caries. SO - Journal of Prosthetic Dentistry 1985 Jun;53(6):776-9 AB - The mode-locked YAG laser effectively removes debris and/or stains from incipient carious lesions in pits and fissures. Prior investigations inferred that the energy levels used in this study would not cause pulpal injury or remove sound intact enamel. This would be a desirable step in sealant therapy and could provide an improved method of debridement in treating precarious lesions. <8> UI - 85239581 AU - Wetmore SJ AU - Key JM AU - Suen JY TI - Complications of laser surgery for laryngeal papillomatosis. SO - Laryngoscope 1985 Jul;95(7 Pt 1):798-801 AB - Carbon dioxide laser surgery has become the treatment of choice for laryngeal papillomatosis. The purpose of this study was to determine the type, incidence, and severity of complications that occur with laser microlaryngoscopy for a disease that often requires multiple operations. Forty patients with laryngeal papillomatosis underwent a total of 222 carbon dioxide laser laryngoscopies over the 6 1/2-year period from June 1977 through December 1983. The results showed that 13 patients sustained a total of 23 separate complications. Intraoperative complications consisted of one episode of bilateral pneumothorax and one episode of cervical subcutaneous emphysema, both associated with the use of jet ventilation anesthesia, and one episode of a loosened tooth in a child with carious teeth. The delayed complications consisted of 10 patients with anterior laryngeal webbing, 2 patients with posterior webbing, 6 patients with laryngeal edema or fibrosis, and one episode each of prolonged dysphagia and tracheal foreign body. No airway fires occurred. Only 2 of 28 patients who had 5 or fewer laser laryngoscopies developed complications, but 11 or 12 patients undergoing 6 or more laser operations had complications. In summary, although the incidence of life threatening complications was low, the occurrence of minor complications such as small anterior glottic webs and persistent edema was relatively high, especially in those patients who required multiple laser laryngoscopies. <9> UI - 85208620 AU - Phankosol P AU - Ettinger RL AU - Hicks MJ AU - Wefel JS TI - Histopathology of the initial lesion of the root surface: an in vitro study. SO - Journal of Dental Research 1985 May;64(5):804-9 AB - An acidified gel system was used to produce artificial caries lesions in root surfaces. Radiopaque surface layers were found with 47% of the lesions. Demineralized bodies of the lesion and mineralized zones of banding were seen in all lesions when examined by microradiography. Cementum and dentin seemed to respond to the acid attack in a similar manner. Although artificial root lesions did not simulate natural root caries entirely, the acidified gel system resulted in a reproducible method that might give insight into initial lesion formation on root surfaces. This technique may be used for studying the physico-chemical process involved in the demineralization of root surfaces and for testing the effects of various agents in the prevention of root caries. <10> UI - 85208632 AU - Takagi S AU - Chow LC AU - Brown WE AU - Dobbyn RC AU - Kuriyama M TI - Application of an x-ray image magnifier to the microradiography of dental specimens. SO - Journal of Dental Research 1985 Jun;64(6):866-9 AB - A highly parallel incident x-ray beam combined with x-ray image magnification was used to obtain high-resolution microradiographs of dental specimens. Preliminary results obtained using a rotating anode x-ray generator show that limitations associated with conventional contact microradiography regarding spatial resolution, sample thickness, and sample orientation, relative to the film, were significantly reduced. <11> UI - 85210855 AU - Myers TD AU - Myers WD TI - In vivo caries removal utilizing the YAG laser. SO - Journal of Michigan Dental Association 1985 Feb;67(2):66-9 <12> UI - 85198515 AU - Theuns HM AU - van Dijk JW AU - Driessens FC AU - Groeneveld A TI - Effect of time, degree of saturation, pH and acid concentration of buffer solutions on the rate of in-vitro demineralization of human enamel. SO - Archives of Oral Biology 1985;30(1):37-42 AB - The rate of demineralization of the artificial caries-like process was measured using two methods. The rate calculated from microradiography of the demineralized enamel appeared to be equal to the one calculated from calcium and phosphate analysis of the demineralizing buffer. In small volumes of demineralizing solution, the rate of demineralization decreased with time, due to the increase in saturation of the solution during the demineralization of the enamel. With increasing saturation, with respect to hydroxyapatite, and with increasing pH the rate of demineralization decreased. Increasing acid concentration had a marked influence only at the lower concentrations; a further increase had no effect on the rate of demineralization. <13> UI - 85129825 AU - Duba VV AU - Pitkevich VA AU - Selyova NG AU - Petrova IV AU - Myasnik MN TI - The formation of photoreactivable damage by direct excitation of DNA in X-irradiated E. coli cells. SO - International Journal of Radiation Biology & Related Studies in Physics, Chemistry & Medicine 1985 Jan;47(1):49-56 AB - The role of the direct excitation process in the formation of photoreactivable damage (pyrimidine dimers) in E. coli WP2 hcr-exr- cells has been studied. The pyrimidine dimers were detected by photoreactivation following anoxic irradiation by X-rays (220 kVp). The dose modifying factor (DMF) is 1.28 +/- 0.09. A biophysical model is used for a theoretical examination of the importance of the direct excitation process in the formation of photoreactivable damage and the experimental data are consistent with this model. <14> UI - 85132095 AU - Mallon DE AU - Mellberg JR TI - Analysis of dental hard tissue by computerized microdensitometry. SO - Journal of Dental Research 1985 Feb;64(2):112-6 AB - One method of quantitating mineral content in thin sections of dental hard tissue is microdensitometry of contact radiographs. This method is often applied to analysis of artificial caries lesions. Because there is great inter- and intra-tooth variability, a single microdensitometric scan will not accurately reflect the content or distribution of mineral within an individual lesion, or within a group of lesions. To increase the number of replicates than can be handled routinely, a computer-driven microdensitometer has been used with a step series of aluminum and enamel to quantitate mineral content values at approximately 1-micron intervals. Accurate assessment of an individual lesion was made possible by averaging multiple scans of the lesion on each of several thin sections prepared from the lesion. Mean mineral profiles of treatment groups were then made from the profiles of the individual lesion. These data reduction techniques allowed for a large number of replicates to be used in the measurement of remineralization. The computerized microdensitometric system described here was developed to allow for an objective, quantitative analysis of the mineral content of dental hard tissue. <15> UI - 85105744 AU - Bodde HE AU - Nelson DG AU - Koops PG AU - Arends J TI - Influence of repeated APF applications on long-term remineralization of initial lesions in bovine enamel. SO - Journal of Dental Research 1985 Jan;64(1):12-8 AB - Initial lesions in bovine enamel were remineralized in vitro for periods lasting from one hour to two weeks; in some cases, remineralization was interrupted daily for a ten-minute APF application. After two weeks, surface coatings appeared on APF-treated specimens; SEM and TEM observations, including selected area and micro-electron diffraction, indicated both a layered structure within these coatings, and the predominance of calcium fluoride single crystals, ranging from 0.1 to 1.0 micrometer in size. Using double (45 Ca and 32 P) labeled remineralizing solutions, we obtained depth profiles of deposited labeled calcium and phosphate; these indicated that repeated APF applications prevented inward penetration of calcium and phosphate and limited the deposition of these ions to an outer surface region corresponding to the surface coating. These phenomena are explained in terms of the composition and apparent reactivity of the coating. <16> UI - 86027414 AU - Mitropoulos CM AU - Worthington HV TI - The effect of different light sources on measuring the prevalence of dental caries. SO - Community Dental Health 1984 Jul;1(2):111-4 <17> UI - 85258346 AU - Melcer F AU - Melcer J TI - [Short-term and intermediate results in the use of the CO2 laser in dentistry]. [Italian] SO - Dental Cadmos 1984 Dec;52(12):37-8, 41-2 <18> UI - 85102327 AU - Pizzirani M AU - Pizzirani C TI - [Root caries. 1. Status of knowledge]. [Review] [45 refs] [Italian] SO - Dental Cadmos 1984 Apr;52(4 Suppl):37-43 <19> UI - 85110732 AU - Re G AU - Borgogna E AU - Fogliano F AU - Musso S TI - [Use of fiber optics in a transillumination technic for the diagnosis of caries]. [Italian] SO - Minerva Stomatologica 1984 Sep-Oct;33(5):797-9 <20> UI - 85107544 AU - Kolmakow S AU - Nyyssonen V AU - Honkala E AU - Paunio I TI - Determining the caries at-risk child: Part II--Assessment of initial caries in the permanent dentition of children. SO - Journal of Pedodontics 1984 Fall;9(1):67-76 <21> UI - 85110214 AU - Melcer J AU - Chaumette MT AU - Melcer F AU - Dejardin J AU - Hasson R AU - Merard R AU - Pinaudeau Y AU - Weill R TI - Treatment of dental decay by CO2 laser beam: preliminary results. SO - Lasers in Surgery & Medicine 1984;4(4):311-21 AB - Results obtained from two clinical cases, representative of 1,140 human teeth treated by CO2 laser beam during 3 years, announce a new conception of treatment of dental caries. The beam (P = 4 - 5 W, energy density of 9 to 25 kw/cm2) causes a dentin healing which becomes sterile, chemically and physically more resistant than pathological dentin. In addition, this exposure leads to an activation of the dentinogenesis supported by X-ray, confirming histo-pathological results obtained from experiments performed on animals. <22> UI - 85082690 AU - Hembree JH Jr AU - Taylor TJ TI - Marginal leakage of visible light-cured composite resin restorations. SO - Journal of Prosthetic Dentistry 1984 Dec;52(6):790-3 <23> UI - 85081605 AU - Yamamoto H TI - [Application of lasers in dentistry]. [Japanese] SO - Nippon Shika Ishikai Zasshi - Journal of the Japan Dental Association 1984;37(3):259-63 <24> UI - 85055761 AU - Wefel JS AU - Harless JD TI - Comparison of artificial white spots by microradiography and polarized light microscopy. SO - Journal of Dental Research 1984 Nov;63(11):1271-5 AB - This work compared lesions produced by three artificial caries systems with natural white spot lesions using both polarized light microscopy and microradiography. The three systems employed were the acidified gelatin gel, diphosphonate surface dissolution inhibitor, and a partially saturated buffer system. When we compared the natural white spot lesions with the artificial caries-like lesions, we found that the acidified gel system reproduced the classical histological zones most frequently. All systems showed a radiopaque surface layer overlying a radiolucent body of the lesion. This radiopaque layer could not be equated with the negatively birefringent surface zone seen in polarized light. <25> UI - 85024339 AU - Kuroda S AU - Fowler BO TI - Compositional, structural, and phase changes in in vitro laser-irradiated human tooth enamel. SO - Calcified Tissue International 1984 Jul;36(4):361-9 AB - Tooth enamel laser irradiated under certain conditions previously has been shown to have reduced subsurface demineralization rates. Identification of these laser-induced changes has bearing on understanding the dissolution rate reduction mechanism; some of these changes, ones that occur in high temperature regions, were studied in this report. X-ray diffraction and infrared spectroscopy were used to identify changes in enamel of extracted intact human teeth subjected to high energy density (approximately 10,000 J/cm2) 10.6 microns wavelength carbon dioxide laser irradiance. The laser irradiance melted the enamel apatite; this solidified melt was composed of minor phases of alpha-tricalcium phosphate, alpha-Ca3 (PO4)2, and tetracalcium phosphate, Ca4(PO4)2O, and a major phase of modified apatite. The apatite modifications, as compared with the original were (1) reductions in contents of water, protein, carbonate, and chloride (or chloride rearrangement); (2) essentially no change in apatite hydroxide content; (3) possible incorporation of oxide replacing some hydroxide ions; and (4) an uptake of traces of carbon dioxide and cyanate. An infrared band at 434 cm-1 that appears in spectra of hydroxyapatite partially dehydroxylated by thermal treatment was assigned to oxide translation. This band was utilized to search for oxide formation in the laser-irradiated tooth enamel. <26> UI - 85024704 AU - ten Bosch JJ AU - van der Mei HC AU - Borsboom PC TI - Optical monitor of in vitro caries. A comparison with chemical and microradiographic determination of mineral loss in early lesions. SO - Caries Research 1984;18(6):540-7 <27> UI - 85028361 AU - Schulein TM AU - Reinhardt JW AU - Johnson WW TI - Detection of interproximal caries by transillumination. SO - General Dentistry 1984 Sep-Oct;32(5):430-2 <28> UI - 85046131 AU - Theuns HM AU - van Dijk JW AU - Driessens FC AU - Groeneveld A TI - The effect of undissociated acetic-acid concentration of buffer solutions on artificial caries-like lesion formation in human tooth enamel. SO - Archives of Oral Biology 1984;29(10):759-63 AB - A chemical system for lesion production was used. The influence on lesion characteristics of the concentration of undissociated acetic acid in a calcium and phosphate-containing buffer solution was investigated. Artificial lesions obtained after demineralization in buffers with a pH of 4.0, 4.5, 5.0 or 6.0 at 5 or 6 different acid concentrations for different demineralization times were investigated micro-radiographically. The lesion characteristics studied were: the mineral content of the surface layer; the mineral content of the body of the lesion; and the depth at which these mineral levels were reached; the depth of the lesion. The concentration of undissociated acetic acid had little effect on the lesion characteristics at low pH. When lower concentration buffers at pH 6.0 were used, the effect was more pronounced. At this level, the buffer capacity of the acetic acid/acetate buffer is small. <29> UI - 85007731 AU - Clarkson BH AU - Wefel JS AU - Miller I TI - A model for producing caries-like lesions in enamel and dentin using oral bacteria in vitro. SO - Journal of Dental Research 1984 Oct;63(10):1186-9 AB - Subsurface enamel lesions and root surface caries-like lesions were consistently produced in vitro using Streptococcus mutans FA1 cultured in thioglycollate broth containing 3.5% w/v dextrose and 2% w/v gelatin. When viewed in polarized light and after imbibition in water, the enamel lesions had a negatively birefringent surface zone and positively birefringent body of the lesion. Those lesions produced after six weeks, after imbibition in quinoline, exhibited a dark zone. The root surface caries-like lesions exhibited a less-radiolucent surface zone above a heavily demineralized body of the lesion. However, no reactionary dentin was seen in the in vitro lesions. <30> UI - 85003356 AU - Staehle HJ AU - Bossmann K TI - [Experimental studies of the anticariogenic action of glass ionomer cement]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1984 Jul;39(7):532-4 <31> UI - 85001947 AU - Mellberg JR AU - Mallon DE TI - Soluble calcium-enhanced remineralization of artificial caries lesions with monofluorophosphate. SO - Caries Research 1984;18(5):416-20 <32> UI - 84300626 AU - Osada K AU - Kojima T AU - Kobayashi K TI - [Lasers in dentistry. 2. Nd-YAG laser-induced heat inside the dental pulp cavity and methods of cooling]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1984 Mar;63(3):629-41 <33> UI - 84300600 AU - Suga S TI - [Changes in the dental enamel around the time of permanent tooth eruption]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1984;Spec No:25-40 <34> UI - 84265533 AU - Mellberg JR AU - Mallon DE TI - Acceleration of remineralization in vitro by sodium monofluorophosphate and sodium fluoride. SO - Journal of Dental Research 1984 Sep;63(9):1130-5 AB - Sixteen groups of artificial caries lesions were treated with from 75-900 ppm F from MFP, NaF, combinations of the two, or water for five min twice daily for ten days. Between treatments, the lesions were placed in a remineralizing solution at 37 degrees C. Quantitative microradiography of the treated lesions vs. matched untreated lesions showed significant remineralization of the surface layer and lesion body of all groups, including the water-treated control group. Fluoride treatments improved remineralization. Increasing the concentration of NaF had only a small effect on remineralization, but MFP was more effective at higher concentrations. Evaluation of MFP/NaF mixtures showed that greatest remineralization was obtained from a 75/225 ppm F ratio of NaF/MFP. This combination of F- and PO3F= was more effective than a fluoride concentration of 300 ppm F from either agent alone. <35> UI - 84275286 AU - Borovskii EV AU - Elizarova VM AU - Kolmykov S AU - Honkkala E AU - Nuussenen V TI - [Clinical diagnostic methods in the initial forms of caries]. [Russian] SO - Stomatologiia 1984 May-Jun;63(3):26-8 <36> UI - 84238326 AU - Melcer J AU - Melcer F TI - [The technology of CO2 lasers in dental treatment]. [French] SO - Information Dentaire 1984 Feb 2;66(5):391-7 <37> UI - 84242382 AU - Bergstrom DH AU - Fox JL AU - Higuchi WI TI - Quantitative microradiography for studying dental enamel demineralization and remineralization. SO - Journal of Pharmaceutical Sciences 1984 May;73(5):650-3 AB - A method for quantitative determination of mineral density changes in dental enamel has been developed. It utilizes the quantitative microscopy capabilities of image analysis or photometer systems. Characteristic demineralization of bovine enamel in acetate buffers containing calcium and phosphate has been used to demonstrate the results. The method together with chemical kinetic data obtained from spectrophotometric and ion-selective electrode measurements of the bulk solution for calcium, phosphate, and fluoride permit important basic studies to be conducted on demineralization and remineralization of dental enamel. <38> UI - 84242383 AU - Bergstrom DH AU - Fox JL AU - Higuchi WI TI - Quantitative microradiographic study of simultaneous demineralization/remineralization of dental enamel in weak acid buffers. SO - Journal of Pharmaceutical Sciences 1984 May;73(5):653-6 AB - The remineralization behavior of weak acid-treated bovine tooth enamel has been investigated using a recently developed quantitative microradiographic method. Acetate buffer solutions at pH 4.5 containing calcium, phosphate, and 10 ppm fluoride were used in this study. When the solution ion activity product ( KFAP = a10CA a6PO4 a2F ) was 1 X 10(-108), the remineralization of the demineralized region was relatively uniform and complete. On the other hand, when the KFAP was approximately less than or equal to 1 X 10(-112), remineralization of the outer 10-20 micron was incomplete. In addition, for the smaller KFAP solutions there was significant demineralization in the deeper recesses of the originally demineralized region. These results agree with a recent chemical kinetics study in which it was proposed that KFAP = 1 X 10(-112) demarcated the region of solution conditions in which remineralization only occurs from that in which simultaneous demineralization/remineralization takes place. A model consistent with all of the data is proposed. <39> UI - 84213522 AU - Marthaler TM TI - Improvement of diagnostic methods in clinical caries trials. SO - Journal of Dental Research 1984 May;63 Spec No:746-51 <40> UI - 84161883 AU - Gelhard TB AU - Arends J TI - Microradiography of in vivo remineralized lesions in human enamel. II. SO - Journal de Biologie Buccale 1984 Mar;12(1):59-65 AB - The purpose of this work was to investigate mineral deposition and redistribution in subsurface human artificial enamel lesions during in vivo remineralization period of 3 months. The enamel lesions were placed in lower prostheses of 30 patients, divided in 3 groups. Group A brushed daily with H2O; group B brushed with H2O and rinsed with a neutral 50 ppm F solution and group C brushed with a neutral 1500 ppm F toothpaste. The technique employed was microradiography. Initially the average vol % of mineral in the lesion body was 47%. After 3 months remineralization in vivo the vol % of mineral in the lesion body was for group A, B and C: 50.7, 48.7 and 53.1 vol %, respectively. The average lesion depth decreased for groups A, B and C 18, 13 and 25 microns respectively over 3 months. The original lesion depth was +/- 100 microns. The microradiographic data show conclusively that mineral is deposited "de novo" inside subsurface lesions. The remineralization percentages are for the control, rinse and brush group 20%, 15% and 31%, respectively. <41> UI - 84162913 AU - Kaufman HW AU - Pollock JJ AU - Murphy J AU - Lunardi S AU - Vlack J TI - Factors involved in artificial caries induction by oral streptococci in extracted human teeth. SO - Journal of Dental Research 1984 May;63(5):653-7 AB - This study assesses the abilities of S. mutans GS5 and BHT and S. sanguis G9B to produce subsurface lesions on smooth surfaces of extracted human teeth and examines factors which might be responsible for any differences encountered. Teeth were incubated in Brain Heart Infusion broth containing 2% sucrose and a pure culture of the organism to be tested, the media being changed each day for eight days. Surface and media pH's were measured. The mineral content of both the surface enamel and the subsurface lesions was determined by contact microradiography. Significantly deeper and more demineralized lesions were produced by GS5 than by either BHT or G9B. GS5 also produced a lower surface and medium pH and a more dense coating on the teeth. Similar results were obtained with GS5 and G9B when the BHI broth was replaced with FMC synthetic media. It is concluded that the system described is suitable for studying cariogenic potential and will be useful in measuring the anticariogenicity of suspected therapeutic agents. <42> UI - 84136602 AU - Mertz-Fairhurst EJ TI - Current status of sealant retention and caries prevention. SO - Journal of Dental Education 1984 Feb;48(2 Suppl):18-26 <43> UI - 84081996 AU - Sluiter JA AU - Purdell-Lewis DJ TI - Lower fluoride concentrations for topical application. In vitro study on human dental enamel. SO - Caries Research 1984;18(1):56-62 <44> UI - 84081999 AU - Theuns HM AU - van Dijk JW AU - Driessens FC AU - Groeneveld A TI - Effect of the pH of buffer solutions on artificial carious lesion formation in human tooth enamel. SO - Caries Research 1984;18(1):7-11 <45> UI - 84081992 AU - Al-Joburi W AU - Koulourides T TI - Effect of fluoride on in vitro root surface lesions. SO - Caries Research 1984;18(1):33-40 <46> UI - 85011316 AU - Yamamoto H TI - [Lasers in dentistry]. [Japanese] SO - Shiyo - Journal of the Tokyo Dental Association 1983 Jan;31(1):13-7 <47> UI - 84248649 AU - Kielmann J TI - [Individual glass-fiber illumination technics for dental photographic demonstration, using as an example, carious destruction]. [German] SO - Quintessenz 1983 Dec;34(12):2409-12 <48> UI - 84215638 AU - Kimura H AU - Sohmura T AU - Tsutsumi N AU - Okazaki M TI - Application of laser on dental treatment. SO - Journal of the Osaka University Dental School 1983 Dec;23:31-42 <49> UI - 84192355 AU - Nakajima S TI - [Microradiographic studies on secondary carious lesions occurring in cavities filled with amalgam]. [Japanese] SO - Shigaku - Odontology 1983 Feb;70(5):777-803 <50> UI - 84132764 AU - Grippaudo G AU - Fratto G TI - [Light polymerization using the Fotofil device for different composite materials]. [Italian] SO - Dental Cadmos 1983 May;51(5):19-32 <51> UI - 84121852 AU - Morioka T AU - Suzuki K TI - [Prevention of dental caries by laser irradiation. 2. Choice of instruments and problems of the irradiated enamel surface]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1983 Oct;62(4):787-96 <52> UI - 84121831 AU - Morioka T AU - Suzuki K TI - [Prevention of dental caries by laser irradiation (1)]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1983 Sep;62(3):529-37 <53> UI - 84097341 AU - Bjorvatn K TI - In vitro study by fluorescence microscopy and microradiography of tetracycline-tooth interaction. SO - Scandinavian Journal of Dental Research 1983 Dec;91(6):417-24 AB - The administration of tetracycline to the growing child may cause discoloration and hypoplasia in developing teeth. Whether tetracycline may also cause changes in fully mineralized enamel and dentin, is still a matter of discussion. The present investigation examines the in vitro reaction between tetracycline chloride and enamel and dentin of extracted human teeth. Specimens were immersed in 0.5 mg/ml to 20 mg/ml aqueous tetracycline solutions. After 24 hr the specimens were sectioned and studied by fluorescence microscopy and microradiography. The tetracycline solutions, which were all very acidic, were found to cause 1) demineralization of enamel and dentin, 2) incorporation of fluorescent material in enamel and, notably, dentin; and 3) formation of yellow, rhombohedral crystals on dental surfaces, especially in the more concentrated solutions. No fluorescence was seen in totally demineralized dentin. The findings indicate that the incorporation of tetracycline into enamel and dentin is caused by physiochemical processes that may take place regardless of the developmental stage of the mineralized tissues. <54> UI - 84097454 AU - Romand-Roeloffs N AU - Holz J AU - Baume LJ TI - [Clinical behavior after 1 year of 4 white light-polymerized composites]. [French] SO - SSO: Schweizerische Monatsschrift fur Zahnheilkunde 1983 Nov;93(11):1047-67 <55> UI - 84055224 AU - ten Cate JM AU - Duijsters PP TI - Influence of fluoride in solution on tooth demineralization. II. Microradiographic data. SO - Caries Research 1983;17(6):513-9 <56> UI - 84055223 AU - Theuns HM AU - van Dijk JW AU - Driessens FC AU - Groeneveld A TI - Effect of time and degree of saturation of buffer solutions on artificial carious lesion formation in human tooth enamel. SO - Caries Research 1983;17(6):503-12 <57> UI - 84057395 AU - Steinke A AU - Netuschil L AU - Riethe P TI - [Determination of the living cell count of cariogenic microorganisms using the measurement of their ATP content in the bioluminescence procedure--a critical look at the method]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1983 Oct;38(10):918-20 <58> UI - 84053603 AU - Williams DF AU - Gore LF AU - Clark GC TI - Quantitative microradiography of cortical bone in disuse osteoporosis following fracture fixation. SO - Biomaterials 1983 Oct;4(4):285-8 AB - Stainless steel (elastic modulus 210 GN/m2) and carbon fibre reinforced epoxy resin (elastic modulus 65 GN/m2) plates have been attached to intact femora in cats and the development of disuse osteoporosis assessed by microdensitometric methods after 8 months. The bone adjacent to the stainless steel plate showed evidence of considerable demineralization, both uniformly throughout a section and especially at certain focal points. A noticeable, but much smaller amount of osteoporosis developed adjacent to the composite plate. Various methods of presenting quantitative micro-densitometric data are used. <59> UI - 84002089 AU - Featherstone JD AU - ten Cate JM AU - Shariati M AU - Arends J TI - Comparison of artificial caries-like lesions by quantitative microradiography and microhardness profiles. SO - Caries Research 1983;17(5):385-91 <60> UI - 83303194 AU - Borovskii EV AU - Markin EP AU - Levedeva GK AU - Koshelev EL AU - Glyva VT TI - [Thermophysical properties of the hard dental tissues and the calculation of dental enamel fusion by laser radiation regimens]. [Russian] SO - Stomatologiia 1983 May-Jun;62(3):29-31 <61> UI - 83293720 AU - Stanley HR AU - Pereira JC AU - Spiegel E AU - Broom C AU - Schultz M TI - The detection and prevalence of reactive and physiologic sclerotic dentin, reparative dentin and dead tracts beneath various types of dental lesions according to tooth surface and age. SO - Journal of Oral Pathology 1983 Aug;12(4):257-89 AB - The pulpo-dentinal complex responds to external injuries with dentin sclerosis (DS), dead tracts (DT), or reparative dentin (RD). This investigation correlates the prevalence of these responses with age, sex, type and surface location of tooth lesions (caries, restorations, attrition, abrasion and erosion) utilizing ground sections, microradiographs and decalcified paraffin-embedded tooth sections treated with the Pollak trichrome stains (270 teeth from 113 patients). The main response to caries, restorations and erosion was DS, followed by RD and DT. DS, RD and DT occurred equally in any tooth, on any tooth surface and even beneath the same lesion. DS did not necessarily prevent RD. Root and furcation DS and RD in the floor of the pulp chamber and root canals were unrelated to particular lesions but did relate to increasing age. Root DS extended from apical to cervical area with increasing age. Beneath caries and restorations DS and RD were more prevalent in males, but DT was more prevalent in females. Pollak staining of decalcified paraffin sections for DS was approximately 80% as accurate as ground sections and microradiography. In pulp studies, where the result is contrary to previous experience, the Pollak stains reveal whether DS has decreased dentin permeability. <62> UI - 83265357 AU - Katzen LE AU - Fleischman JA AU - Trokel SL TI - The YAG laser: an American experience. SO - Journal - American Intra-Ocular Implant Society 1983 Spring;9(2):151-6 AB - We used the OPL3 neodymium-YAG laser to treat 86 patients, 41 male and 45 female, for secondary opacification of an intact posterior capsule one month to four years after planned extracapsular cataract extraction or phacoemulsification, with or without intraocular lens implantation. Visual acuities improved as a function of corneal and macular competence, and careful post-procedure examination revealed no deleterious corneal, iris, vitreal or retinal side effects of the laser treatments. In some of the treated eyes, the implants had single or multiple, small (0.5 mm) white spots on their posterior aspects, or thin linear defects centrally, but in no case was this visually evident to the patient. <63> UI - 83282213 AU - Gallagher IH AU - Pearce EI AU - Cutress TW TI - Artificial caries produced by different oral bacterial cultures incubated with bovine dental enamel. SO - Archives of Oral Biology 1983;28(4):317-25 AB - Early caries-like lesions were formed in enamel incubated in glucose broths inoculated with different cultures of oral bacteria. Analysis of the broths by gas chromatography revealed, after appropriate incubation, the presence of lactic, succinic, formic, acetic, propionic, isobutyric, n-butyric, isovaleric or n-caproic or mixtures of these acid catabolites. Subsurface lesions formed with all acids and mixtures providing that the terminal pH dropped less than or equal to 5.6. However, the processes conformed in part only with the idealized simple diffusion phenomenon for caries formation, indicating the presence of other factors which could affect the production of lesions in biological systems. <64> UI - 83266453 AU - Pearce EI TI - A microradiographic and chemical comparison of in vitro systems for the simulation of incipient caries in abraded bovine enamel. SO - Journal of Dental Research 1983 Sep;62(9):969-74 AB - An acetate buffer system, supersaturated with fluorapatite but not with hydroxyapatite, produced lesions in abraded bovine enamel which resembled human enamel caries lesions, both morphologically and in their F distribution. A gelatin-lactate system gave similar results when unpurified gelatin was used. Systems containing deionized gelatin, diphosphonate, or Ca and phosphate but no F, failed to produce caries-like lesions. <65> UI - 83266539 AU - O'Brien WJ AU - Yee J Jr AU - Dennison JB AU - Johnston WM AU - Stefanski R AU - Yee WJ AU - Fanian F TI - The application of blue polymer curing lights for diagnostic transillumination. SO - Journal of the American Dental Association 1983 Jun;106(6):839-42 <66> UI - 83124185 AU - Charman WN TI - Unwanted astigmatism in lenses with a concentric variation in sagittal power. SO - American Journal of Optometry & Physiological Optics 1982 Dec;59(12):997-1001 AB - A concentric variation in sagittal power, Fs, with zonal radius, y, has been used in some designs of varifocal and aphakic spectacle lenses. It is shown theoretically, using a paraxial approximation, that a gradient dFs/dy in sagittal power leads to the introduction of an amount y.dFs/dy of unwanted astigmatism. The validity of this result is illustrated experimentally. <67> UI - 83082736 AU - Theuns HM AU - Jongebloed WL AU - Arends J AU - Groeneveld A TI - Birefringence and mineral content of the first stage of artificial carious lesion formation (a combined polarizing microscopic, microradiographic and scanning electron microscopic investigation). SO - Journal de Biologie Buccale 1982 Sep;10(3):217-26 AB - Artificial carious lesions were made using acetic buffer solutions of pH 6.0 containing calcium and phosphate. The solutions were highly undersaturated with respect to hydroxyapatite. Out of 72 lesions 51 showed subsurface demineralization, whereas in 21 only a superficial demineralization occurred. These superficial lesions were examined using polarized light microscopy, microradiography and scanning electron microscopy. This superficial breakdown of enamel material, considered as the initial demineralization of the enamel, appeared to occur at the prism junctions. This was indicated by the polarizing microscope technique and was made clearly visible using scanning electron microscopy. Quantitative polarizing microscopy and microradiography revealed results which correlated very well. From this it is probable that the initial superficial demineralization of the enamel is--under the described conditions--a simple dissolution reaction. <68> UI - 83096332 AU - Bjorvatn K TI - Antibiotic compounds and enamel demineralization. An in vitro study. SO - Acta Odontologica Scandinavica 1982;40(5):341-52 AB - Discoloration, pigmentation and even caries-like lesions have been reported in teeth subsequent to per oral administration of antibiotics. The present in vitro study examines the possible medicament/tooth reaction by exposing plane, polished enamel surfaces to aqueous solutions or oily suspensions of various commonly used penicillin compounds, or to solutions of tetracycline sodium. The teeth were examined by visual inspection, microhardness tests, scanning electron microscopy and microradiography. pH and [Ca2+] of the test solutions were analyzed by potentiometry. Surface or subsurface lesions and a decline in microhardness were found in (most) enamel specimens exposed to aqueous solutions of the medicaments. Similar changes were found in test specimens immersed in deionized water, while saliva, oily suspensions of the medicaments and aqueous solutions made from ordinary Ca-penicillin had no adverse affect on the enamel. The most serious destruction was seen in enamel specimens submerged in watery solutions made from effervescent (citrate-containing) Ca-penicillin, or from tetracycline. A slight decline in pH was observed in the aqueous solutions during the experiment. The calcium ion concentration did not increase parallel to enamel destruction. <69> UI - 83057668 AU - Fearnhead RW AU - Kawasaki K AU - Inoue K TI - Comments on the porosity of human tooth enamel. SO - Journal of Dental Research 1982 Dec;Spec No:1524-31 AB - The porous nature of surface and sub-surface enamel undergoing the final stages of maturation has been observed on unerupted, partly-erupted, and fully-erupted human teeth, using polarized light microscopy, microradiography, and scanning electron microscopy. Maturation deficiency of developmental origin can be distinguished from early carious lesions with polarized light by the absence of a well-circumscribed "dark" zone. <70> UI - 83040879 AU - Hansen EK TI - Visible light-cured composite resins: polymerization contraction, contraction pattern and hygroscopic expansion. SO - Scandinavian Journal of Dental Research 1982 Aug;90(4):329-35 AB - The wall-to-wall polymerization contraction and hygroscopic expansion of Durafill, Heliosit, Silux and Visio-Dispers were examined in dentin cavities in extracted human teeth. The linear shrinkage varied from 0.24% to 0.63% and only two of the tested materials were able to close the marginal gap owing to water absorption. The gaps were nearly always broadest in the apical part of the filings. Measurements of the marginal gaps were made at different levels between 100 and 1200 microns below the free surface of the fillings and the wall-to-wall polymerization contraction was found to increase markedly from the level of 100 microns down to 800 microns. The contraction pattern of the four light-cured resins differed significantly from the one found in a chemically-cured material. <71> UI - 82268500 AU - Corley JM AU - Killoy WJ TI - Stability of citric acid solutions during a five month period. SO - Journal of Periodontology 1982 Jun;53(6):390-2 AB - The purpose of this study was to examine the effect of time, light and air exposure on the pH stability and demineralization ability of a standardized pH 1 citric acid solution. A 0.5 liter pH 1 citric acid solution was prepared and examined over a 5 month period. The results indicated that pH 1 citric acid and solutions prepared under the described conditions remained stable during the examination period with regards to all tested variables. <72> UI - 82249576 AU - Melcer J TI - [Contribution of the CO2 laser in the sterilization of various infections of dental origin]. [French] SO - Revue de Stomatologie et de Chirurgie Maxillo-Faciale 1982;83(2-3):146-51 AB - The CO2 laser (lambda congruent to 10.6 micrometers) induces structural changes in the mineralised tissues of the dental organ: fusion, recristallization, increase in hardness and sterilisation. (Report at the Academie des Sciences, December 1980). Thanks to Professor C. Freche, 200 cases have been treated using the FLF 25 since June 1980: 1) apical infections: 40 cases. The laser closes the lumen of the canaliculi, hardens and sterilises the dentine; 2) dentino-pulp infections: 150 cases. The laser volatilizes the area of caries in live teeth, hardens and sterilises the dentine. With exposed pulp (6 cases) the laser coagulates, sterilises and permits closure; 3) periradicular infections: 10 cases. The laser cleans, sterilises and hardens. Parodontal pockets are cleansed; 4) mucosal or gingival surgery is bloodless, atraumatic and particularly facilitated. The laser has become an instrument for the prevention of the complications of dental disease. <73> UI - 82241337 AU - Aoba T AU - Yagi T TI - Effects of acid-dissolution on thin ground sections of enamel caries studied by microradiography and x-ray microbeam diffraction. SO - Journal of Oral Pathology 1982 Jun;11(3):191-200 AB - In order to obtain information about the chemical reactivity of localized areas within natural enamel caries, thin ground sections prepared from white spot lesions were subjected to HCl solutions with 0.01, 0.05, and 0.1 N concentrations. Microradiographic examination combined by densitometric analysis demonstrated that the surface layer covering demineralized lesions remained relatively stable against acid attacks and that, despite the original lower degree of mineralization, its microradiographic density became higher than that of the underlying normal enamel during acid-dissolution. Another interesting finding was that in the experiment using the most diluted HCl solution, a radiopaque zone became noticeable at the advancing front of the lesions in the course of dissolution. X-ray microbeam diffraction analysis of these sections showed that no apparent alterations occurred in mineral structure of enamel with acid dissolution, except for the decrease in crystallinity of enamel apatite. Based on the results obtained here, one can expect that the surface layer and the interior part of natural carious lesions possess a high degree of resistance to acid attacks, relative to the underlying normal enamel. <74> UI - 82241338 AU - Aoba T AU - Yagi T TI - Crystallographic and structural alterations in the mineral phase of human enamel with carious attacks. SO - Journal of Oral Pathology 1982 Jun;11(3):201-9 AB - The present study aims to obtain further information about the crystallographic and structural alterations in the mineral phase of enamel with the onset of caries. For this purpose, X-ray microbeam diffraction analysis was carried out on ground sections prepared from natural white spot lesions. Electron spin resonance (ESR) analysis was also performed on block samples cut from white spot lesions and from undamaged enamel of the same teeth. The results of crystallinity measurements showed that enamel apatite in demineralized lesions was lower in crystallinity than the apatite in the surface layer and surrounding sound enamel. This X-ray diffraction study also revealed the presence of two non-apatitic minerals in the demineralized lesions. One type of the mineral is whitlockite, giving spotty rings. The nature of the other mineral, giving a single ring-like reflection, remains to be elucidated. A comparison of ESR spectra taken from the caries-attacked and undamaged enamel provided evidence that the former samples have a lower degree of alignment of apatite microcrystals. The occurrence of non-apatitic mineral phases and the observed difference in microcrystalline alignment may be the results of a remineralization process. <75> UI - 82214635 AU - Dooland M AU - Smales R TI - The diagnosis of fissure-caries in permanent molar teeth. SO - ASDC Journal of Dentistry for Children 1982 May-Jun;49(3):181-5 <76> UI - 82184350 AU - Simmelink JW AU - Nygaard VK TI - Ultrastructure of striations in carious human enamel. SO - Caries Research 1982;16(2):179-88 <77> UI - 82176658 AU - Bjelkhagen H AU - Sundstrom F AU - Angmar-Mansson B AU - Ryden H TI - Early detection of enamel caries by the luminescence excited by visible laser light. SO - Swedish Dental Journal 1982;6(1):1-7 <78> UI - 82025160 AU - Stephens RG AU - Kogon SL AU - Wainright RJ AU - Reid JA TI - Information yield from routine bitewing radiographs for young adults. SO - Journal / Canadian Dental Association. Journal de l Association Dentaire Canadienne 1981 Apr;47(4):247-52 <79> UI - 82028087 AU - Yamamoto H AU - Sato K AU - Okubo T AU - Sato H AU - Toya Y TI - [Progress in caries prevention by laser irradiation (author's transl)]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1981 Apr;57(4):633-41 <80> UI - 82008486 AU - Brodbelt RH AU - O'Brien WJ AU - Fan PL AU - Frazer-Dib JG AU - Yu R TI - Translucency of human dental enamel. SO - Journal of Dental Research 1981 Oct;60(10):1749-53 AB - Translucency of human dental enamel was determined by total transmittance of wavelengths from 400 to 700 nm. The transmission coefficient at 525 nm was 0.481 mm-1. Total transmission of light through human dental enamel increased with increasing wavelength. Human tooth enamel is more translucent at higher wavelengths. The translucency of wet human enamel and enamel after dehydration was also measured by total transmittance. The transmission coefficient at 525 nm decreased from 0.482 to 0.313 mm-1 after dehydration and was reversed on rehydration. The decrease in translucency occurred as a result of the replacement of water around the enamel prisms by air during dehydration. <81> UI - 82012116 AU - Yamamoto H TI - [Dental caries prevention with laser]. [Japanese] SO - Shiyo - Journal of the Tokyo Dental Association 1981 May;(3):1-2 <82> UI - 81273040 AU - Peltola J AU - Wolf J TI - Fibre optics transillumination in caries diagnosis. SO - Proceedings of the Finnish Dental Society 1981;77(4):240-4 <83> UI - 81267273 AU - Elliott JC AU - Dowker SE AU - Knight RD TI - Scanning X-ray microradiography of a section of a carious lesion in dental enamel. SO - Journal of Microscopy 1981 Jul;123(Pt.1):89-92 AB - A scanning X-ray microradiographic system is described with which it is possible to measure the X-ray absorption in a 1 mm X 1mm area of a section in about 27h at a resolution of 20 micrometers with a reproducibility of about +/- 1.5%. This system has advantages over photographic methods for certain quantitative investigations. The results can be presented in various forms including contour maps and half-tone pictures and this is illustrated with a radiograph of a section of a carious lesion in dental enamel. <84> UI - 81117870 AU - Alfano RR AU - Yao SS TI - Human teeth with and without dental caries studied by visible luminescent spectroscopy. SO - Journal of Dental Research 1981 Feb;60(2):120-2 AB - The visible emission spectra and fluorescent life-time from decayed and nondecayed regions of teeth were measured and compared. The spectrum from carious lesions is different from that of noncarious tooth regions. This may offer a non-X-ray method for diagnosing dental caries in humans. <85> UI - 81168939 AU - Duquette P AU - Lemay H AU - Boudrias P TI - [Detection of interproximal caries by transillumination]. [French] SO - Journal Dentaire du Quebec 1980 Aug-Sep;17:59-61 <86> UI - 81117856 AU - Shiroto K TI - [Incipient fissure caries in extracted premolar teeth from young orthodontic patients]. [Japanese] SO - Koku Eisei Gakkai Zasshi 1980 Jan;29(4):378-87 <87> UI - 81119271 AU - Koulourides T AU - Cameron B TI - Enamel remineralization as a factor in the pathogenesis of dental caries. SO - Journal of Oral Pathology 1980 Sep;9(5):255-69 AB - This paper described an investigation of local resistance acquired in response to cariogenic attacks and remineralization periods from environmental fluids. Surfaces from extracted human teeth with yellow and brown areas indicative of consolidated carious lesions were exposed to acid buffers. Subsurface lesions were developed on areas of sound enamel adjacent to, but not in areas of, consolidated lesions. The development of higher tooth resistance to acid through demineralization and remineralization was demonstrated experimentally on bovine enamel presoftened in acid, treated with fluoride, exposed to the oral environment, and finally exposed to acid buffers for development of subsurface lesions. These results are interpreted as an extension of theory of tissue adaptation to an injurious challenge, in that the tooth surface is primed by the challenge for possible remineralization and the development of higher resistance. This, cariogenic challenges can result in either local adaptation of the enamel to the challenge through lesion consolidation or to open cavitation. As in any biological adaptation, the determining factors for the final outcome are: (a) the frequency and duration of the challenge, (b) the frequency and duration of remineralizing conditions, and (c) the composition of the remineralizing fluid. The implications of the theory in the pathogenesis of caries are discussed in the light of clinical and laboratory investigations. <88> UI - 81042174 AU - Langdon DJ AU - Elliott JC AU - Fearnhead RW TI - Microradiographic observation of acidic subsurface decalcification in synthetic apatite aggregates. SO - Caries Research 1980;14(6):359-66 <89> UI - 80194531 AU - Tveit AB AU - Hals E TI - Inhibitory effect of a fluoride-containing amalgam on development of cavity wall lesions in vitro. SO - Acta Odontologica Scandinavica 1980;38(1):29-39 AB - This study aimed to compare caries-like lesions produced aroung fluoride-containing amalgam and conventional amalgam fillings in vitro. Class V cavities were prepared in 90 extracted premolars, a fluoride-containing amalgam was inserted in 45 cavities (experimental group) and a conventional amalgam in 45 cavities (control group). After three months in an acidified gelatin solution, a longitudinal ground section passing through the cavity was prepared from each tooth. The sections were imbibed in water, quinoline and some in air before examination by polarized light microscopy. When imbibed in Canada balsam the sections were photographed and areas of demineralization in the enamel measured morphometrically. Some sections were studied by microradiography and electron microprobe analysis. Numerical scoring of the histological observations revealed significantly lower values for enamel and dentin cavity wall lesions in the experimental group, while the scores for the outer lesions were not statistically different between the two groups. The mean extension of enamel wall lesions was significantly lower in the experimental group, while no difference was observed in the outer lesions. A zone of increased mineralization in the enamel cavity walls was a frequent finding in the experimental group. This study has shown that fluoride-containing amalgam has an inhibitory effect on the development of experimental cavity wall lesions in vitro. <90> UI - 80089890 AU - ten Bosch JJ AU - Borsboom PC AU - ten Cate JM TI - A nondestructive method for monitoring de- and remineralization of enamel. SO - Caries Research 1980;14(2):90-5 <91> UI - 80094937 AU - Yamamoto H AU - Sato K TI - Prevention of dental caries by acousto-optically Q-switched Nd: YAG laser irradiation. SO - Journal of Dental Research 1980 Feb;59(2):137 <92> UI - 80106741 AU - Chesney RW AU - Mazess RB AU - Rose P AU - Hamstra AJ AU - DeLuca HF TI - Supranormal 25-hydroxyvitamin D and subnormal 1,25-dihydroxyvitamin D: their role in X-linked hypophosphatemic rickets. SO - American Journal of Diseases of Children 1980 Feb;134(2):140-3 AB - Serum 25-hydroxyvitamin D (25-OH-D) and 1,25-dihydroxyvitamin D (1,25-(OH)2D) and bone mineral content by the photon-absorption technique were determined in eight patients with X-linked hypophosphatemic rickets treated for at least 24 months with oral sodium phosphate and high-dosage ergocalciferol (vitamin D2). Mean 25-OH-D2 level was 129.5 +/- 67.5 ng/mL (mean +/- SD); the level of 25-OH-D3 was 10.5 +/- 5.8 ng/mL. These values were significantly higher than in normal subjects (total 25-OH-D mean of 27 +/- 10 ng/mL). Serum 1,25-(OH)2D was 16.9 +/- 8.5 pg/mL (mean +/- SD) in the eight patients, significantly lower than 47 +/- 16 pg/mL in 27 age-matched controls. Values indicative of significant demineralization were found in seven of the eight phsophate-treated patients, who had no radiologic evidence of rickets. These results suggest that any theory of the pathogenesis of this disorder must account for inappropriate renal vitamin D metabolism and for renal hyperphosphaturia. The failure of high-dosage oral phosphate and ergocalciferol to fully correct demineralization may suggest a role for calcitriol (1,25-(OH)2D3) as a therapeutic agent. <93> UI - 80238705 AU - Tveit AB AU - Halse A TI - Radiopaque zones in the dentin beneath silicate fillings analyzed by electron microprobe. SO - Acta Odontologica Scandinavica 1979;37(6):363-9 AB - Seven teeth which showed radiopaque zones beneath silicate fillings were sectioned and studied by microradiography and electron microprobe analysis in order to elucidate which elements were responsible for the increased absorption of X-rays and whether the presence of carious lesions could be masked by foreign elements in the tissue. The Ca concentration was frequently found to be either slightly increased or reduced compared with radiographically unaltered dentin. Increased concentrations of F and Zn occurred in the radiopaque zones. The highest F concentrations (0.4--1%) were recorded in zones with an increased Ca content. The highest Zn concentrations (5--8%) were found in the three specimens having a reduced Ca content. The possible conditions responsible for the increased Ca, F and Zn concentrations are discussed. The results indicate that both Ca and Zn may contribute to the increased absorption of X-rays. The hypothesis that carious dentin may be obscured in intraoral radiographs by the presence of foreign elements in the tissue, was not substantiated. <94> UI - 80174441 AU - Mendis BR AU - Darling AI TI - A scanning electron microscope and microradiographic study of closure of human coronal dentinal tubules related to occlusal attrition and caries. SO - Archives of Oral Biology 1979;24(10-11):725-33 <95> UI - 80179518 AU - Yamamoto H AU - Oya K AU - Sato K AU - Takahashi H TI - [Present and the future status of laser research in dentistry]. [Japanese] SO - Shikai Tenbo - Dental Outlook 1978;52(3):423-32 <96> UI - 79181558 AU - Kumazaki M AU - Yoshiiri K AU - Fuke A TI - [New methods of cavity diagnosis]. [Japanese] SO - Rinsho Shika Japanese Edition 1978;(291):11-7 <97> UI - 79082549 AU - Bassiouny MA AU - Grant AA TI - A visible light-cured composite restorative. Clinical open assessment. SO - British Dental Journal 1978 Dec 5;145(11):327-30 <98> UI - 79053945 AU - Lieberman JE AU - Webber RL TI - Clinical evaluation of a prototype intraoral source x-ray system. SO - Oral Surgery, Oral Medicine, Oral Pathology 1978 Aug;46(2):318-27 AB - A prototype dental roentgenographic system which incorporates a tightly collimated intraoral x-ray source and an extraoral Polaroid film screen cassette was evaluated both in vitro and in vivo. Findings indicate that the detectability of artificially induced incipient enamel lesions was significantly less than that demonstrable for conventional roentgenograms produced with an extraoral source, long-cone geometry, and Kodak Ultra Speed D film. Larger lesions were found to be reliably detected by either technique. The new intraoral approach reduces the dose to the patient by possibly as much as 98 per cent and yields positive dry prints in 15 seconds. This system was clinically tested and found to be useful in endodontics and presurgical evaluation. Modifications are discussed which could reduce some of the technical problems and many of the shortcomings encountered. <99> UI - 79024493 AU - Lenz P AU - Gilde H TI - [Temperature changes in the pulp cavity after enamel sealing with lasers]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1978 Sep;33(9):623-8 <100> UI - 78256394 AU - Featherstone JD AU - Duncan JF AU - Cutress TW TI - Surface layer phenomena in in-vitro early caries-like lesions of human tooth enamel. SO - Archives of Oral Biology 1978;23(5):397-404 <101> UI - 78186247 AU - Groeneveld A AU - Theuns HM AU - Kalter PG TI - Microradiography of developing artificial dental caries-like lesions in man. SO - Archives of Oral Biology 1978;23(2):75-83 <102> UI - 78138392 AU - Anneroth G AU - Isacsson G AU - Lindwall AM AU - Linge G TI - Clinical, histologic and micro-radiographic study of natal, neonatal and pre-erupted teeth. SO - Scandinavian Journal of Dental Research 1978 Jan;86(1):58-66 AB - A clinical, histologic and microradiographic investigation of 62 natal, neonatal and otherwise pre-erupted teeth from 51 children is presented. Such a comprehensive material has not previously been reviewed. Of the 62 teeth, 59 were mandibular incisors. A hereditary factor could be demonstrated in 12 cases. Fifty-three teeth showed more or less pronounced enamel hypoplasia. The enamel had a normal prism structure and mineralization with the exception of 22 cases where the prism structure was absent in the cervical part of the enamel. The cervical and apical dentin was atubular and in developing teeth the dentin in these regions changed to an irregularly formed hard tissue of osteodentin character, in which enclosed cells could be observed. Developing teeth often had no cementum, and in those cases where acellular cementum could be observed it was thinner than normal. In four patients atypically located carious lesions occurred. <103> UI - 78082195 AU - Purdell-Lewis DJ AU - Groeneveld A AU - Arends J TI - The effect of demineralization on SnF2-treated white spot enamel lesions. SO - Caries Research 1978;12(1):52-9 <104> UI - 80102826 AU - Basaglia P AU - Vernole B TI - [The laser ray in dentistry]. [Italian] SO - Rivista Italiana di Stomatologia 1977 Feb;45(2):39-44 <105> UI - 79204138 AU - Miljevic V AU - Stojicevic M TI - [Applications of lasers in dentistry]. [Serbo-Croatian (Roman)] SO - Stomatoloski Glasnik Srbije 1977 Nov-Dec;24(5):333-7 <106> UI - 78117366 AU - Rasmussen P TI - Histologic and microradiographic observations on teeth during calcium deprivation in rats. SO - Scandinavian Journal of Dental Research 1977 Nov;85(7):549-56 AB - Adult female rats were subjected to severe calcium deprivation by feeding them a calcium-deficient diet containing oxalate (Group a). Furthermore, pregnant and lactating animals were subjected to the same diet (Group b). The mandibular teeth were examined by histologic, microradiographic and fluorescence microscopic techniques. The incisor enamel was found to be nearly unaffected by the experimental regimen; the dentin formed and mineralized during the experimental period was abnormal only in Group b. Characteristic features were reduced thickness, increased width of predentin and numerous globular defects. Both ameloblasts and odontoblasts were seemingly normal. No obvious differences could be observed between the molars from the controls and the test groups (a,b). "Cementolysis" seemed to be present to the same extent in all groups. In some of the animals of Group b some carious or erosional defects were observed in the molars. These may at least partially account for a small reduction in molar ash content observed in this group. <107> UI - 78109860 AU - Goodman BD AU - Kaufman HW TI - Effects of an argon laser on the crystalline properties and rate of dissolution in acid of tooth enamel in the presence of sodium fluoride. SO - Journal of Dental Research 1977 Oct;56(10):1201-7 AB - Upon exposure to laser radiation, enamel powder mixed with NaF underwent an increase in crystallite size and/or perfection with a significant uptake of fluoride. Incisor teeth lased in the presence of NaF released significantly less calcium and phosphorus into sodium acetate (pH 4.0) compared with unlased controls, suggesting a possible role for the laser in caries prevention. <108> UI - 78081972 AU - Spitzer D AU - ten Bosch JJ TI - Luminescence quantum yields of sound and carious dental enamel. SO - Calcified Tissue Research 1977 Dec 29;24(3):249-51 AB - The absorption and emission spectra of slabs of human and bovine dental enamel were determined. The absorption and scattering coefficients and emission quantum yields were computed according to theoretical models. The samples were gradually demineralized. The absorption, scattering, and emission parameters were determined as a function of the demineralization time. Using the theoretical models combined with the experimental values, ratio of the visible and UV luminescence, and the decrease of visible emission intensity upon demineralization are explained. <109> UI - 77258747 AU - Anneroth G AU - Isacsson G TI - Lipidhistochemical and microradiographic study of distribution of lipids in relation to mineral content in dentin caries. SO - Scandinavian Journal of Dental Research 1977 Jul;85(5):341-7 AB - Fifteen human molars were investigated using lipidhistochemical and microradiographic methods. A peripheral necrotic and totally decalcified part of the carious lesion revealed a markedly positive staining reaction for sphingomyelin, sulfatides, cholesterol- and/or triglyceride-esters. The reaction was probably conditioned by the presence of debris and plaque within this area. Pulpally and immediately below the necrotic zone, an area of demineralization was found which on the microradiographs appeared as a radiolucent zone. The zone showed a mineral gradient with an increasing mineral content towards the pulp. In the zone of demineralization a positive reaction occurred for sphingomyelin decreasing in a pulpal direction with increasing mineral content. A weakly positive reaction for cholesterol- and/or triglyceride-esters was also detected but only in the most pulpal part of the zone of demineralization; the intensity of the staining reaction was comparable to that found in normal dentin. In those areas which were represented by a sclerotized, radiopaque zone, only a very weak reaction for sphingomyelin, cholesterol-and/or triglyceride-esters could be observed of the same staining intensity as in normal dentin. The region between the lesion and the pulp showed the same staining intensity as normal dentin. <110> UI - 77224950 AU - Reinhardt KJ AU - Vahl J AU - van Benthem H TI - [Aspects of bonding and fusing of materials meltable by lasers (caries prophylaxis and therapy)]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1977 Jul;32(7):506-7 AB - Experiments are described which aim to combine a protective cover with the enamel. Borium proved to be a good absorbtive mediator and phosphate glass was well suited as ground substance. <111> UI - 77143297 AU - Newesely H TI - High temperature behaviour of hydroxy- and fluorapatite. Crystalchemical implications of laser effects on dental enamel. SO - Journal of Oral Rehabilitation 1977 Jan;4(1):97-104 AB - The application of laser rays for caries prevention as for restorative purposes in oral rehabilitation causes severe changes in the structural and textural assembly of the dental hard tissue. Electron microscopical and X-ray investigations of the new calcium phosphate phases which arise demonstrate a deterioration of the affected tooth regions. <112> UI - 77046986 AU - Hals E AU - Selvig KA TI - Correlated electron probe microanalysis and microradiography of carious and normal dental cementum. SO - Caries Research 1977;11(1):62-75 <113> UI - 78156950 AU - Takahashi S TI - [Microradiographical investigations of carious dentin of deciduous teeth (author's transl)]. [Japanese] SO - Shigaku - Odontology 1976 Oct;64(3):375-404 <114> UI - 77080342 AU - Missika P TI - [Prevention of dental caries: myth or reality]. [French] SO - Revue d Odonto-Stomatologie 1976 Jul-Aug;5(4):289-91 <115> UI - 77005298 AU - Moller IJ AU - Beck DJ TI - Transactions of an international conference. Worldwide concern: better dental care for more people. An international collaborative study. How oral surveys were conducted. SO - International Dental Journal 1976 Sep;26(3):299-306 AB - A special form and field manuals defining examination criteria were prepared for recording the following: 1. Number of teeth present both primary and permanent 2. Periodontal disease (a) Oral hygiene using the simplified oral hygiene index. (b) Periodontal condition using a modified P.I. index. (c) Periodontal treatment requirements. 3. Dental caries The DMF index was used with separate coding for filled or crowned teeth having additional primary or secondary decay. 4. Dento facial anomalies Both treatment need and treatment status were recorded. 5. Prosthetic status Possession and requirements for partial or full dentures and bridges were recorded for the age groups 13-14 and 35-44. 6. Oral pathology Pathological conditions of the gingiva and oral mucosa. 7. Need for immediate attention Conditions causing or likely to cause pain or danger to general health unless immediate treatment was given. The recording was carried out using fibre optic illumination, disposable mirrors and sickle probes. X-rays were not utilized. Two roving epidemiologists first established reproducible criteria and then calibrated the local examiners. Re-calibration took place at intervals and repeat examinations of a small sample population ensured reproducibility of recordings. The completed charts were sent to the WHO Oral Health Unit where they were edited and the data transferred to computer tape for analysis. For the present reports three variables--number of carious teeth, caries treatment/need ratio and number of teeth with gingivitis were selected for special study. <116> UI - 76249735 AU - Balastre R TI - [The absorption of helium-neon laser light in teeth (enamel, dentin, caries)]. [French] SO - Actualites Odonto-Stomatologiques 1976 Mar;(113):167-191 <117> UI - 76199111 AU - Fejerskov O AU - Silness J AU - Karring T AU - Loe H TI - The occlusal fissure of unerupted third molars as an experimental caries model in man. SO - Scandinavian Journal of Dental Research 1976 May;84(3):142-9 AB - The aim of the present investigation was to establish an experimental model for the study of fissure caries development under conditions as similar as possible to the in vivo situation. Twenty-one blocks (2 X 2 X 3 mm) constituting part of the occlusal fissure were made from unerupted human third molars, and implanted for 60 or 90 d in mandibular molars of students. One milliliter of a 50% sucrose solution was applied to the fissures twice a day. After removal, sections were examined microradiographically in polarized light and in the electron microscope. As a control, the morphology and enamel structure of fissures from 10 unerupted third molars were studied. After 90 d a subsurface, radiolucent caries-like lesion was observed in two specimens only. When examined in air in polarized light, however, all sections exhibited caries-like lesions symmetrically located around the fissures. The 60-d material showed similar lesions, but not as frequently as the 90-d specimens. In the experimental material processed for electron microscopy revealed that the fissure plaque mainly consisted of cocci and small rods. Most often the bacteria were separated from the enamel surface by a pellicle. <118> UI - 78010618 AU - Purdell Lewis DJ AU - Pot T TI - [A comparison of radiographic and fiber optic diagnoses of proximal caries lesions]. [Dutch] SO - Nederlands Tijdschrift voor Tandheelkunde 1975 Jan;82(1):5-10 <119> UI - 76233849 AU - Korf S TI - Does lighting affect incidence of dental caries?. SO - CDS Review 1975 Nov;68(11):20-2 <120> UI - 75206929 AU - Rodda JC AU - Mortimer KV AU - Williams ED TI - Colour television image analysis of carious lesions. SO - Calcified Tissue Research 1975 Jul 25;18(2):149-53 AB - The new technique of colour television image analysis has been used to produce seven-colour contour maps of the radiodensity of micro-radiographs of enamel caries. This method permits the detailed measurement of the mineral content of enamel carious lesions to a sensitivity of +/-3% of the level of complete mineralisation. By selection of appropriate aluminium step-wedges, exposed simultaneously with the tooth section, the whole range of mineral content can be assessed. <121> UI - 75199395 AU - Rowles SL AU - Browne RM TI - Reprecipitation during the preparation of demineralized sections. II. Experimental observations. SO - Stain Technology 1975 May;50(3):187-95 AB - Teeth were incompletely demineralized by immersion in unchanged 10% formic acid for 7 days. Reprecipitation deposits of secondary calcium phosphate were present in the dentin and soft tissues of the dental pulp and, if the final pH was 3 or greater, in the remnants of the periodontal ligament. The deposits in the dentin appeared to be intratubular. Deminieralized sections of teeth suspended in supersaturated solutions of brushite contained similar deposits in the soft tissues. It is suggested that reprecipitation of secondary calcium phosphates is a frequent intermediate stage during demineralization with formic acid. <122> UI - 75159925 AU - Dominkovic T TI - Early diagnosis of fissure caries using the dental operating lamp. SO - Svensk Tandlakaretidskrift 1975;68(1):19-24 <123> UI - 75110739 AU - Takuma S AU - Ogiwara H AU - Suzuki H TI - Electron-probe and electron microscope studies of carious dentinal lesions with a remineralized surface layer. SO - Caries Research 1975;9(4):278-85 <124> UI - 75110717 AU - Groeneveld A AU - Arends J TI - Influence of pH and demineralization time on mineral content, thickness of surface layer and depth of artifical caries lesions. SO - Caries Research 1975;9(1):36-44 <125> UI - 75110727 AU - Groeneveld A AU - Purdell-Lewis DJ AU - Arends J TI - Influence of the mineral content of enamel on caries-like lesions produced in hydroxyethyl cellulose buffer solutions. SO - Caries Research 1975;9(2):127-38 <126> UI - 78027005 AU - Stern RH TI - The laser in dentistry: a review of the literature. [Review] [21 refs] SO - Journal of the Dental Association of South Africa 1974 Mar;29(3):173-6 <127> UI - 76017147 AU - Proietti G AU - Bosi C AU - Mura MC AU - Taggi F TI - [Inhibitory action of visible radiations on experimental caries in rats]. [Italian] SO - Annali dell Istituto Superiore di Sanita 1974;10(1-2):13-20 <128> UI - 75090715 AU - Levine RS TI - Remineralisation of natural carious lesions of enamel in vitro. SO - British Dental Journal 1974 Aug 20;137(4):132-4 <129> UI - 75072703 AU - Houwink B TI - The index of refraction of dental enamel apatite. SO - British Dental Journal 1974 Dec 17;137(12):472-5 <130> UI - 75072739 AU - Levine RS TI - The microradiographic features of dentine caries. Observations on 200 lesions. SO - British Dental Journal 1974 Oct 15;137(8):301-6 <131> UI - 75077724 AU - Purdell-Lewis DJ AU - Pot T TI - A comparison of radiographic and fibre-optic diagnoses of approximal caries lesions. SO - Journal of Dentistry 1974 Jul;2(4):143-8 <132> UI - 75038665 AU - Bossmann K AU - Hoppe WF TI - [Experimental studies on the question of the function of the dental cuticle]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1974 Nov;29(11):1030-5 <133> UI - 74294608 AU - Swedhner K TI - [New fiber optical instrument]. [Swedish] SO - Tandlakartidningen 1974 Apr 1;66(7):388-9 <134> UI - 74302395 AU - Weber DF TI - Human dentine sclerosis: a microradiographic survey. SO - Archives of Oral Biology 1974 Feb;19(2):163-9 <135> UI - 74258746 AU - Westbrook JL AU - Miller AS AU - Chilton NW AU - Williams FL AU - Mumma RD Jr TI - Root surface caries: a cinical, histopathologic and microradiographic investigation. SO - Caries Research 1974;8(3):249-55 <136> UI - 74262862 AU - Groeneveld A AU - Arends J TI - The effect of SnF2 and cetylaminohydrofluoride solutions on the acid demineralisation of enamel. SO - Caries Research 1974;8(3):275-82 <137> UI - 74175723 AU - Yamamoto H AU - Ooya K TI - Potential of yttrium-aluminum-garnet laser in caries prevention. SO - Journal of Oral Pathology 1974;3(1):7-15 <138> UI - 74167249 AU - Menzel HJ AU - Bordes L des TI - [The usefulness of fiber optics in the early diagnosis of dental caries compared to clinical and radiological methods of examination]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1974 Feb;29(2):147-50 <139> UI - 75003027 AU - Balastre R TI - [Laser in odontology]. [French] SO - Actualites Odonto-Stomatologiques 1973 Dec;27(104):785-94 <140> UI - 74251666 AU - Boessmann K AU - Moll G AU - Hoppe WF TI - [Microradiographic and electron microscopic structural examination of experimentally induced caries in dental enamel]. [German] SO - Bulletin du Groupement International Pour la Recherche Scientifique en Stomatologie 1973 Oct;16(4):217-38 <141> UI - 74175051 AU - Barenie J AU - Leske G AU - Ripa LW TI - The use of fiber optics transillumination for the detection of proximal caries. SO - Oral Surgery, Oral Medicine, Oral Pathology 1973 Dec;36(6):891-7 <142> UI - 74083627 AU - Hals E AU - Norderval IT TI - Histopathology of experimental in vivo caries around silicate fillings. SO - Acta Odontologica Scandinavica 1973 Dec;31(6):357-67 <143> UI - 74078206 AU - Ohtsuka M TI - [Studies on the carious changes of deciduous enamel, by means of microradiography (author's transl)]. [Japanese] SO - Shigaku - Odontology 1973 Oct;61(4):639-67 <144> UI - 74074448 AU - Larmas M AU - Kantola S TI - A histochemical study of arylaminopeptidases and alkaline phosphatases in sound and carious human teeth. SO - Acta Odontologica Scandinavica 1973;31(3):179-85 <145> UI - 74063668 AU - Silverstone LM TI - Laboratory investigations on caries prevention. SO - International Dental Journal 1973 Sep;23(3):405-13 <146> UI - 74040525 AU - Huxley HG TI - The effect of varying the hours of light on the incidence of dental caries in rats. SO - New Zealand Dental Journal 1973 Apr;69(316):121-3 <147> UI - 74035461 AU - Levine RS AU - Rowles SL TI - Further studies on the remineralization of human carious dentine in vitro. SO - Archives of Oral Biology 1973 Nov;18(11):1351-6 <148> UI - 74015003 AU - Levine RS TI - The differential inorganic composition of dentine within active and arrested carious lesions. SO - Caries Research 1973;7(3):245-60 <149> UI - 73168389 AU - Hefferren JJ TI - A review of approaches to the detection of dental caries. Council on Dental Materials and Devices. [Review] [39 refs] SO - Journal of the American Dental Association 1973 Jun;86(6):1358-64 <150> UI - 73195550 AU - Friedman J TI - The use of fiber optics as a diagnostic aid. SO - Dental Survey 1972 Oct;48(10):38-41 <151> UI - 73020439 AU - Stern RH AU - Sognnaes RF TI - Laser inhibition of dental caries suggested by first tests in vivo. SO - Journal of the American Dental Association 1972 Nov;85(5):1087-90 <152> UI - 72226642 AU - Shklar G TI - Experimental oral pathology in the Syrian hamster. [Review] [59 refs] SO - Progress in Experimental Tumor Research 1972;16:518-38 <153> UI - 72241153 AU - Moller IJ AU - Pindborg JJ AU - Roed-Petersen B TI - The prevalence of dental caries, enamel opacities and enamel hypoplasia in Ugandans. SO - Archives of Oral Biology 1972 Jan;17(1):9-22 <154> UI - 72241138 AU - Bergman G AU - Anneroth G TI - A semiquantitative microradiographic study of the distribution of organic mass in human carious dentine. SO - Archives of Oral Biology 1972 Jan;17(1):201-9 <155> UI - 72219468 AU - Sumitani M AU - Takeuchi H AU - Shimahara T AU - Tsubakimoto K AU - Tsutsui M TI - Salivary, serum, and microbial components of human carious dentin. SO - Journal of Dental Research 1972 Jul-Aug;51(4):1067-70 <156> UI - 72219209 AU - Levine RS TI - Remineralization of human carious dentine in vitro. SO - Archives of Oral Biology 1972 Jun;17(6):1005-8 <157> UI - 72219461 AU - Levine RS TI - Distribution of fluoride in active and arrested carious lesions in dentin. SO - Journal of Dental Research 1972 Jul-Aug;51(4):1025-9 <158> UI - 72219487 AU - Manson-Hing LR AU - Keller SE AU - Feagin FF AU - Koulourides T TI - Microradiographic comparison of artificial caries systems. SO - Journal of Dental Research 1972 Jul-Aug;51(4):923-8 <159> UI - 72178899 AU - Melcer F AU - Melcer J TI - [Walls of cavities to be filled. Enamel under reflected light]. [French] SO - Science et Recherche Odontostomatologiques 1972 Mar;2(3):27-31 <160> UI - 72170323 AU - Wright GZ AU - Simon I TI - An evaluation of transillumination for caries detection in primary molars. SO - ASDC Journal of Dentistry for Children 1972 May-Jun;39(3):199-202 <161> UI - 72159656 AU - Crabb HS TI - Incremental bands in microradiographs of ground sections of a carious lesion in enamel. SO - Caries Research 1972;6(2):169-82 <162> UI - 72097584 AU - Hals E AU - Simonsen LT TI - Histopathology of experimental in vivo caries around silver amalgam fillings. SO - Caries Research 1972;6(1):16-33 <163> UI - 73251661 AU - Anneroth G TI - Microradiography in oral research. [Review] [32 refs] SO - Svensk Tandlakaretidskrift 1971 May;64(5):317-34 <164> UI - 72158467 AU - Sharon IM AU - Feller RP AU - Burney SW TI - The effects of lights of different spectra on caries incidence in the golden hamster. SO - Archives of Oral Biology 1971 Dec;16(12):1427-32 <165> UI - 72104637 AU - Vahl J TI - [Laser and its application in dentistry]. [German] SO - Hippokrates 1971 Dec;42(4):488-506 <166> UI - 72011233 AU - Gwinnett AJ TI - A comparison of proximal carious lesions as seen by clinical radiography, contact microradiography, and light microscopy. SO - Journal of the American Dental Association 1971 Nov;83(5):1078-80 <167> UI - 71216047 AU - Macler E TI - [Detection of dental caries. Further examination]. [French] SO - Information Dentaire 1971 Mar 18;53(11):1031-2 <168> UI - 71155376 AU - Hoppe WF AU - Bossmann K TI - [Use of densitometry in the quantitative evaluation of mineral loss in carious dental enamel]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1971 Mar;26(3):384-7 <169> UI - 71152820 AU - Furseth R TI - Further observations on the fine structure of orally exposed and carious human dental cementum. SO - Archives of Oral Biology 1971 Jan;16(1):71-85 <170> UI - 71236374 AU - Stern RH TI - [The laser in the prevention of caries]. [Spanish] SO - Fauchard 1970 Jun;1(6):238-40 <171> UI - 70281273 AU - Sekiguchi K TI - [Histochemical study of human dentin caries--comparison with microradiography]. [Japanese] SO - Shikwa Gakuho 1970 Aug;70(8):1012-40 <172> UI - 70237138 AU - Von der Fehr FR TI - The caries inhibiting effect of topically applied hexafluorostannate on dentine and enamel. SO - Caries Research 1970;4(3):269-82 <173> UI - 70233351 AU - Baume LJ TI - Dental pulp conditions in relation to carious lesions. SO - International Dental Journal 1970 Jun;20(2):309-37 <174> UI - 70233350 AU - Zerosi C TI - Critical appraisal of the literature on deep carious lesions. [Review] [42 refs] SO - International Dental Journal 1970 Jun;20(2):297-308 <175> UI - 70236922 AU - Bergman G AU - Anneroth G TI - Microradiography of oral tissues. [Review] [235 refs] SO - Advances in Oral Biology 1970;4:313-68 <176> UI - 71230351 AU - Frigerio G TI - [Uses of lasers in medical and biological fields: achievements and prospects]. [Italian] SO - Minerva Fisiconucleare 1969 Apr-Jun;13(2):173-80 <177> UI - 71017358 AU - Stern RH TI - The potential of various lasers in caries prevention. SO - Annals of the New York Academy of Sciences 1969 Feb 10;168(3):642-8 <178> UI - 70269230 AU - Bergman G AU - Hammarstrom L TI - Research on calcified dental tissues. The value of combining different methods. SO - Svensk Tandlakaretidskrift 1969 Jul;62(7):449-63 <179> UI - 70202988 AU - Bergman G AU - Linden LA TI - The action of the explorer on incipient caries. SO - Svensk Tandlakaretidskrift 1969 Oct;62(10):629-34 <180> UI - 70062118 AU - Nakazawa S AU - Yamaki M AU - Nitta N AU - Sawano S TI - [The effect of topically applied caries inhibiting agents on the mature enamel surfaces. 1. Polarized-light microscopic and microradiographic observations of artificially produced lesions in acid buffer]. [Japanese] SO - Hiroshima Daigaku Shigaku Zasshi - Journal of Hiroshima University Dental Society 1969;1(1):30-41 <181> UI - 70011272 AU - Sunohara H TI - [Microradiographic study of various lesions in human dentin]. [Japanese] SO - Shikwa Gakuho 1969 Jul;69(7):999-1034 <182> UI - 69241404 AU - Stern RH AU - Renger HL AU - Howell FV TI - Laser effects on vital dental pulps. SO - British Dental Journal 1969 Jul 1;127(1):26-8 <183> UI - 69161827 AU - Bossmann K AU - Hoppe WF TI - [Standard methods of producing caries in vitro]. [German] SO - Deutsche Zahnarztliche Zeitschrift 1969 Mar;24(3):193-6 <184> UI - 69168825 AU - Bergman G AU - Hammarstrom L TI - Research on calcified dental tissues. The value of combining different methods. SO - Calcified Tissue Research 1968;:Suppl:12 <185> UI - 69117827 AU - Furseth R AU - Johansen E TI - A microradiographic comparison of sound and carious human dental cementum. SO - Archives of Oral Biology 1968 Oct;13(10):1197-206 <186> UI - 68391974 AU - Silverstone LM TI - The surface zone in caries and in caries-like lesions produced in vitro. SO - British Dental Journal 1968 Aug 20;125(4):145-57 <187> UI - 68410663 AU - Borovskii EV AU - Granin AV AU - Onishchenko SP TI - [Changes of the hard dental tissues in caries in the stage of pigment spot]. [Russian] SO - Stomatologiia 1968 Jul-Aug;47(4):16-9 <188> UI - 68279502 AU - Wei SH AU - Kaqueller JC AU - Massler M TI - Remineralization of carious dentin. SO - Journal of Dental Research 1968 May-Jun;47(3):381-91 <189> UI - 68046693 AU - Crabb HS TI - A new approach to the interpretation of the microradiographic image. SO - Archives of Oral Biology 1967 Oct;12(10):1195-8 <190> UI - 68012762 AU - Massler M TI - Pulpal reactions to dental caries. SO - International Dental Journal 1967 Jun;17(2):441-60 <191> UI - 67248265 AU - Fehr FR von der TI - A study of carious lesions produced in vivo in unabraded, abraded, exposed, and F-treated human enamel surfaces, with emphasis on the x-ray dense outer layer. SO - Archives of Oral Biology 1967 Jul;12(7):797-814 <192> UI - 67209949 AU - Silverstone LM TI - Surface phenomena in dental caries. SO - Nature 1967 Apr 8;214(84):203-4 <193> UI - 67178290 AU - Buonocore MG AU - Gwinnett AJ TI - Chemical, polarized light, and microradiographic study of the effects of various toothpastes on "white spot" formation in vitro. SO - Journal of Oral Therapeutics & Pharmacology 1967 Mar;3(5):321-9 <194> UI - 67132882 AU - Taylor RC AU - Ware WH AU - McDowell JA TI - Illumination of the oral cavity. SO - Journal of the American Dental Association 1967 May;74(6):1207-9 <195> UI - 67132883 AU - Klein AI TI - Clinical television research instrumentation. SO - Journal of the American Dental Association 1967 May;74(6):1210-9 <196> UI - 67134001 AU - Sharpe AN TI - Influence of the crystal orientation in human enamel on its reactivity to acid as shown by high resolution microradiography. SO - Archives of Oral Biology 1967 May;12(5):583-92 <197> UI - 67129958 AU - Mjor IA TI - Histologic studies of human coronal dentine following cavity preparations and exposure of ground facets in vivo. SO - Archives of Oral Biology 1967 Feb;12(2):247-63 <198> UI - 67122081 AU - Granin AV TI - [Mineralization disorders in the hard tissues of permanent teeth in the initial enamel caries. Microrentgenophotometric study]. [Czech] SO - Ceskoslovenska Stomatologie 1967 Jan;67(1):1-7 <199> UI - 67122851 AU - Frazier PD TI - Electron probe analysis of human teeth, Ca-P ratios in incipient carious lesions. SO - Archives of Oral Biology 1967 Jan;12(1):25-34 <200> UI - 67127401 AU - Crabb HS AU - Mortimer KV TI - Two-dimenisonal microdensitometry. A preliminary report. SO - British Dental Journal 1967 Apr 18;122(8):337-43 <201> UI - 67094438 AU - Francis MD AU - Briner WW TI - The development and regression of hypomineralized areas of rat molars. SO - Archives of Oral Biology 1966 Mar;11(3):349-54 <202> UI - 67087484 AU - Gray JA TI - Kinetics of enamel dissolution during formation of incipient caries-like lesions. SO - Archives of Oral Biology 1966 Apr;11(4):397-422 <203> UI - 67080234 AU - Bergman G AU - Lind PO TI - A quantitative microradiographic study of incipient enamel caries. SO - Journal of Dental Research 1966 Sep-Oct;45(5):1477-84 <204> UI - 67002626 AU - Brown LR AU - Wheatcroft MG TI - Effect of the diffusion of microbial growth factors through tooth substance on production of carious lesions in vitro. SO - Journal of Dental Research 1966 May-Jun;45(3):830-7 <205> UI - 66154828 AU - Anneroth G AU - Bergman G AU - Welander E TI - Microradiographic study of dental tissues using soft and ultrasoft x-rays. SO - Odontologisk Revy 1966;17(2):131-48 <206> UI - 66142330 AU - Masaki T TI - [What the model experiment using photoelasticity teaches us about preparation of class 2 cavities for dental amalgam]. [Japanese] SO - Nippon Shika Ishikai Zasshi - Journal of the Japan Dental Association 1965 Sep;18(6):487-8 <207> UI - 66035151 AU - Fosdick LS AU - Hutchinson AC TI - The mechanism of caries of dental enamel. SO - Annals of the New York Academy of Sciences 1965 Sep 30;131(2):758-70 <208> UI - 66004087 AU - Brannstrom M AU - Lind PO TI - Pulpal response to early dental caries. SO - Journal of Dental Research 1965 Sep-Oct;44(5):1045-50 <209> UI - 66003480 AU - Morrant GA TI - Lasers: an appraisal of their possible use in dentistry. SO - Dental Practitioner & Dental Record 1965 Sep;16(1):5-9 <210> UI - 76113703 AU - Nias AH AU - Gilbert CW TI - Response of HeLa and Chinese hamster cells to low doses of photons and neutrons. pp. 93-9. SO - In: Alper T, ed. Cell survival after low doses of radiation. London, Institute of Physics, 1975. W3 GR35 1974c. ; AB - Survival of colony-forming ability has been estimated for HeLa and Chinese hamster (ovary) cells irriadiated in vitro with 300 kV x-rays at 100 rad min-1, with 60Co gamma rays over protracted periods of time, with 14 MeV DT neutrons at 10-30 rad min-1 and with protracted 252Cf neutron irradiation. A computer program has been used to analyse the experimental data to determine the best fit to a Puck-type survival curve. Comparison of the survival curves of HeLa cells showed that oxygen was a simple DMF when cells were only hypoxic but not when they were completely anoxic. The same contrast applied to a change in LET from 300 kV x-rays to 14 MeV neutrons; with CHO cells a simple DMF was found but with HeLa cells it was not. With protracted cobalt gamma-irradiation, oxygen was a simple DMF; with californium it was not. The comparison between cobalt and californium is therefore complicated. In two series of experiments the dose-response of both HeLa and CHO cells was measured over the shoulder as well as the straight-line portions of the Puck curves for both 300 kV x-rays and 14 MeV neutrons. The initial slopes of the survival curves could therefore be computed. These observations lead to the conclusion that for x-rays the initial slope of the survival curve for CHO cells is only just significantly different from zero. For HeLa cells the x-ray curve has a well defined initial slope.