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

• Autores: Ludger Keilig, Helmut Stark, Christoph Bourauel
• Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 29, Nº. 6, 2016, págs. 595-597
• Idioma: inglés
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• Resumen

  • 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.