Comparative Study on Material Combinations of Various Dental Implant-abutment Systems

Yu-lin ZHOU, Zhi-hong MAO, Jian-sheng WANG, Qiong-yao WANG

Abstract


Objective: The aim of the study was to evaluate the effect of material combinations on stress distribution at implant-bone interface, which benefits the selection of implant-abutment system materials; Methods: The simplified models of mandibular bone, implant and mandibular molar were established by Geomagic studio and Solidworks. To assess the stress distribution of implants and the peri-implant bone tissue under different implant-abutment system material combinations. All were subjected to static loading and analyzed by finite element method. Results: The results showed that the stress distribution of each group was similar. The stress of the implant was concentrated at the upper thread, and the maximum stress appeared at the neck of the implant. The stresses in abutment were highest at the contact region around the implant. The maximum stress of the screw appeared in the first thread. The stresses in cortical bone and trabecular bone were highest at the crestal region around the implant. Conclusions: The use of implant-abutment system components with different material is possible, and optimal implant-abutment system material design need to consider the compatibility with abutment and implant material, so that we can acquire better comprehensive performance.

Keywords


Materials, Dental implants, Three-dimensional finite element analysis


DOI
10.12783/dtcse/cscbd2019/30087

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