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Volume 29 , Issue 6
November/December 2016

Pages 595–597

Does the Material Stiffness of Novel High-Performance Polymers for Fixed Partial Dentures Influence Their Biomechanical Behavior?

Ludger Keilig, Dr rer nat Dipl–Math/Helmut Stark, Prof Dr med dent, DMD/Christoph Bourauel, Prof Dr rer nat Dipl–Phys

PMID: 27824981
DOI: 10.11607/ijp.4940

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.

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