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Dynamic modulus

The dynamic modulus is defined as the ratio of stress to strain for small cyclic deformations at a given frequency and at a particular point on the stress-strain curve.

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                                         Dynamic modulus
Material                 Product       (psi x 1000) (MPa)     Ref.
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Maxillofacial materials
  Polyurethane           Dermathane 100    0.444*     3.06*     38
  Polyvinyl chloride     Sartomer Resins   0.364*     2.51*     38
  Silicone rubber        Silastic 382      0.435*     3.00*     38
                         Silastic 399      0.554*     3.82*     38
Mouth protector material
  Polyvinyl acetate-
   polyethylene          Proform           3.07*     21.2*      37
                         Sta-Guard         1.36*      9.39*     37
Restorative materials
   Composite resin
     Anterior            Silar            372.6#      2569#    219
                         Silux            374.5#      2582#    219
     Posterior           P10             1218  #      8396#    219
                         P50             1399  #      9645#    219
                         Profile         1147  #      7911#    219
                         Profile TLC     1274  #      8786#    219

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* Measured at 37 deg. C.
# Dynamic sheer modulus, measured wet at 40 deg. C.

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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/Dynmod.html

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