Numerical verification of two-component dental implant in the context of fatigue life for various load cases

• Autorzy: Szajek K. , Wierszycki M.

Identyfikatory

DOI

10.5277/ABB-00323-2015-02

• Języki publikacji: EN

Abstrakty

EN

Purpose: Dental implant designing is a complex process which considers many limitations both biological and mechanical in nature. In earlier studies, a complete procedure for improvement of two-component dental implant was proposed. However, the optimization tasks carried out required assumption on representative load case, which raised doubts on optimality for the other load cases. This paper deals with verification of the optimal design in context of fatigue life and its main goal is to answer the question if the assumed load scenario (solely horizontal occlusal load) leads to the design which is also “safe” for oblique occlussal loads regardless the angle from an implant axis. Methods: The verification is carried out with series of finite element analyses for wide spectrum of physiologically justified loads. The design of experiment methodology with full factorial technique is utilized. All computations are done in Abaqus suite. Results: The maximal Mises stress and normalized effective stress amplitude for various load cases are discussed and compared with the assumed “safe” limit (equivalent of fatigue life for 5e6 cycles). Conclusions: The obtained results proof that coronial-appical load component should be taken into consideration in the two component dental implant when fatigue life is optimized. However, its influence in the analyzed case is small and does not change the fact that the fatigue life improvement is observed for all components within whole range of analyzed loads.

Słowa kluczowe

EN

dental implant; optimization; fatigue life; genetic algorithm

PL

implant stomatologiczny; optymalizacja; trwałość zmęczeniowa; algorytm genetyczny

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2016
• Tom: Vol. 18, no. 1
• Strony: 103--113
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Szajek K.

• Poznań University of Technology, Institute of Structural Engineering, Poznań, Poland

autor

Wierszycki M.

• Poznań University of Technology, Institute of Structural Engineering, Poznań, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.