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Bond Strengths Between Restorative Materials and Tooth Structures

Adhesion of restorative materials to tooth structures has been studied since 1955. The bond strength is the load required to fracture the bond divided by the cross-sectional area of the bond. Bond strengths are measured either in shear or tension. Many factors, including the dentine substrate, the storage conditions and the test method, affect the bond strength values.

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                                       Shear bond strength
Substrate    Adhesive     Adherend     (psi x 1000)  (MPa)   Ref.
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Dentin  Dentin bonding    Composite          3.2-5.1   22-35  238
          system
Dentin  No smear layer    Light-cured
                            hybrid
                            glass-ionomer    1.5-1.7   10-12  238
Enamel  Enamel bonding    Composite          2.6-3.2   18-22  238
          system
Enamel  Amalgam           Composite          1.5-1.7   10-12  238
          bonding system
Enamel  Amalgam           Amalgam            0.3-0.9    2- 6  238
          bonding system
Enamel  No smear layer    Traditional
                            glass ionomer    1.2-1.7    8-12  238
Enamel  Enamel bonding    Orthodontic
          system            bracket          2.6-2.9   18-20  238
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                                      Tensile bond strength
Substrate    Adhesive     Adherend     (psi x 1000)  (MPa)   Ref.
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Dentin     Polyurethane   Composite          0.1-0.9    1- 6  147
Dentin     Polyacrylic  
             acid         Composite          0.3-0.6    2- 4  147
Dentin     Organic
             phosphonates Composite          0.4-1.4    3-10  147
Dentin     4-META*        Composite          0.4-1.0    3- 7  147
Dentin     HEMA + GA#     Composite          1.6-2.4   11-17  147
Dentin     NPG-GMA/PMDM$  Composite          0.6-1.8    4-12  147
Dentin                    Glass ionomer          0.6    4     147
Dentin                    Zinc
                            polycarboxylate  0.4-0.6    3- 4  147
Dentin                    Adhesive resin 
                            cement               0.6    4.1   147
Dentin                    Conventional
                            resin cement         0.0    0.0   147
Etched enamel             Fine composite     2.4-2.8   17-20  147
Etched enamel             Microfine 
                            composite            1.4   10     147
Enamel                    Glass ionomer          0.7    5     147
Etched enamel             Adhesive resin
                            cement               2.2   15     147
Etched enamel             Conventional
                            resin cement         1.5   10     147
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*   4-META-4-methyloxyethyl-trimellitic anhydride
#   HEMA - hydroxyethyl methacrylate
    GA - glutaraldehyde
$   NPG-GMA - N-phenyl glycine - glycidyl methacrylate
    PMDM - pyromellitic acid diethylmethacrylate

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Introduction to Biomaterials Properties | Biomaterials Properties Table Listing |
References (1-100) | References (101-200) | References (201-244) |

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Revised April, 1996
Biomaterials Properties Database, University of Michigan
Contact: Dr William J. O'Brien, Director (FAX: 313-647-5293).
Copyright © Quintessence Publishing, 1996.

http://www.lib.umich.edu/dentlib/Dental_tables/Bondstr.html

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