External과 Internal 형태와 골질에 따른 임프란트 및 지지 조직의 응력 분포
An analysis of stress distribution around the implant according to the external and internal form and bone quality : finite element method
이동규, 정진형, 임성빈, 홍기석,
소속 상세정보
이동규 ( Lee Dong-Kyu ) - 단국대학교 치과대학 치주과학교실
정진형 ( Chung Chin-Hyung ) - 단국대학교 치과대학 치주과학교실
임성빈 ( Lim Sung-Bin ) - 단국대학교 치과대학 치주과학교실
홍기석 ( Hong Ki-Seok ) - 단국대학교 치과대학 치주과학교실
KMID : 1033920120080010038
Abstract
Since the early study about the osseointegrationn, lots of researches have been performed to increase the succes rate and the stress around the implant in the jaw bone has been considered s one of the causes of failure. In this study was to assess the loading distributing characteristics of implant systems with internal connection of external connection under vertical and inclined loading using finite element analysis in compact bone and spongeous bone. 100N vertical force and 30 degree 100N force applicated each implant model.
The results were as follows;
1. In the type I bone under vertical loading, the stress decreased from crestal bone to bottom bone, but in the type IV one,
the stress increased in the apical portion of implants.
2. The stress of internal type implants were higher than others regardless of bone types and loading types.
3. When lateral force was applicated, the stress decreased at the apical regardless of bone types, lingual marginal bone of external typ implant model was stressed half in type I bone.
4. In the eternal type implant, the labial stress was higher, but in the internal type implant, the ligual stress was higher regardless of loading types.
키워드
External connection; Finite element analysis; Internal connection; Stress distribution
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