|
KMID : 1033920120080010038
|
|
Journal of The Korean Academy of Geriatric Denstry
2012 Volume.8 No. 1 p.38 ~ p.43
|
|
|
An analysis of stress distribution around the implant according to the external and internal form and bone quality : finite element method
|
|
Lee Dong-Kyu
Chung Chin-Hyung
Lim Sung-Bin
Hong Ki-Seok
|
|
|
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.
|
|
|
KEYWORD
|
|
|
External connection, Finite element analysis, Internal connection, Stress distribution
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|