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The International Journal of Prosthodontics
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Int J Prosthodont 29 (2016), No. 6     24. Nov. 2016
Int J Prosthodont 29 (2016), No. 6  (24.11.2016)

Page 595-597, doi:10.11607/ijp.4940, PubMed:27824981


Does the Material Stiffness of Novel High-Performance Polymers for Fixed Partial Dentures Influence Their Biomechanical Behavior?
Keilig, Ludger / Stark, Helmut / Bourauel, Christoph
Purpose: To investigate the influence of framework materials with different elasticity moduli on the biomechanical performance of fixed partial dentures (FPDs).
Materials and Methods: A tooth-anchored three-unit FPD and surrounding tissues were modeled in two variants (veneered/ full anatomical FPD) and loaded on the central unit. Three different framework materials (titanium, zirconia, high-performance polymer) were simulated.
Results: The polymer framework resulted in reduced framework stresses and increased veneering stresses. Varying the framework material had minimal influence on the loading of surrounding tissue.
Conclusions: Using soft, novel materials as framework for dental FPDs does not negatively influence biomechanical loading of the involved biologic structures.