[Analysis of the movement of long axis and the distribution of principal stress in abutment tooth retained by conical telescope].
OBJECTIVE
To study the movement of long axis and the distribution of principal stress in the abutment teeth in removable partial denture which is retained by use of conical telescope.


METHODS
An ideal three dimensional finite element model was constructed by using SCT image reconstruction technique, self-programming and ANSYS software. The static loads were applied. The displacement of the long axis and the distribution of the principal stress in the abutment teeth was analyzed.


RESULTS
There is no statistic difference of displacenat and stress distribution among different three-dimensional finite element models. Generally, the abutment teeth move along the long axis itself. Similar stress distribution was observed in each three-dimensional finite element model. The maximal principal compressive stress was observed at the distal cervix of the second premolar.


CONCLUSIONS
The abutment teeth can be well protected by use of conical telescope.
Lin
Ying-he
YH
Department of Prothodongtics, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
Man
Yi
Y
Qu
Yi-li
YL
Guan
Dong-hua
DH
Lu
Xuan
X
Wei
Na
N
D003442:Crowns; D000044:Dental Abutments; D003799:Dental Stress Analysis / Q000379:methods*; D003819:Denture Bases / Q000592:standards*; D003779:Denture Design; D003781:Denture Retention / Q000295:instrumentation*; D003832:Denture, Partial, Removable / Q000592:standards; D020342:Finite Element Analysis; D006801:Humans; D012984:Software