임플랜트와 경부골이 이루는 각도가 치경부 응력 발생에 미치는 영향
An evaluation of angles between the alveolar crest bone and the implant effect on the implant crestal area induced stresses using a finite element method
조성범, 이규복, 조광헌,
소속 상세정보
조성범 ( Cho Sung-Bum ) - 경북대학교 치과대학 보철학교실
이규복 ( Lee Kyu-Bok ) - 경북대학교 치과대학 보철학교실
조광헌 ( Jo Kwang-Hun ) - 경북대학교 치과대학 보철학교실
KMID : 0362420070450020274
Abstract
Statement of Problem: Main consideration was given to the stresses at the site of implant entry into the cortical bone at the alveolar crest. As a suspectible factor affecting the occurrence of stress concentrations, the contact angle between the implant and the alveolar crest bone was addressed.
Purpose: The purpose of this study is to evaluate angles between the alveolar crest bone and the implant effect on the implant crestal area induced stresses using a finite element method.
Material and Methods: Cylindrically shaped, standard size ITI implants entering into alveolar crest with four different contact angles of 0, 15, 30, and 45 deg. with the long axis of the implant were axisymmetrically modelled. Alterations of stresses around the implants were computed and compared at the cervical cortical bone.
Results and Conclusion: The results demonstrated that regardless of the difference of the implant/alveolar crest bone contact angles, stress concentration occurred at the cervical bone and the angle differences led to insignificant variations in stress level.
키워드
Cortical bone contour;ITI implant;Axisymmetric modelling
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