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논문 상세정보

임프란트의 상부구조물 형상과 하중조건에 따른 3차원 유한요소해석을 이용한 하악골의 응력분포에 관한 연구

THREE-DIMENSIONAL STRESS ANALYSIS OF IMPLANT SYSTEMS IN THE MANDIBULAR BONE WITH VARIOUS ABUTMENT TYPES AND LOADING CONDITIONS

Abstract

Statement of problem : There are many studies focused on the effect of shape of futures on stress distribution in the mandibular bone. However, there are no studies focused on the effect of the abutment types on stress distribution in mandibular bone. Purpose : The purpose of this study is to investigate the effect of three different abutment types on the stress distributions in the mandibular bone due to various loads by performing finite element analysis. Material and method : Three different implant systems produced by Warantec (Seoul, Korea), were modeled to study the effect of abutment types on the stress distribution in the mandibular bone. The three implant systems are classified into oneplant (Oneplant, OP-TH-S11.5). internal implant (Inplant, IO-S11.5) and external implant (Hexplant, EH-S11.5). All abutments were made of titanium grade ELI. and all fixtures were made of titanium grade IV. The mandibular bone used in this study is constituted of compact and spongeous bone assumed to be homogeneous, isotropic and linearly elastic. A comparative study of stress distributions in the mandibular bone with three different types of abutment was conducted. Results : It was found that the types of abutments have significant influence on the stress distribution in the mandibular bone. It was due to difference in the load transfer mechanism and the size of contact area between abutment and fixture. Also the maximum effective stress in the mandibular bone was increased with the increase of inclination angle of load. Conclusion : It was concluded that the maximum effective stress in the bone by the internal implant was the lowest among the maximum effective stresses by other two types.

참고문헌 (12)

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이 논문을 인용한 문헌 (1)

  1. Lee, Hye-Sung ; Kim, Myung-Rae ; Park, Ji-Man ; Kim, Sun-Jong 2010. "A 3-dimensional finite element analysis of tapered internal connection implant system (Avana SS $III^{(R)}$) on different abutment connections" 대한치과보철학회지 = The journal of Korean academy of prosthodontics, 48(3): 181~188 

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