[A study of load stress on an implant and a tooth supported fixed bridge for the first mandibular molar].
OBJECTIVE
A study of load stress on an implant and a tooth supported fixed bridge for the first mandibular molar was performed by means of 3-D FEA in order to reveal the displacement and stress distribution.


RESULTS
The results show that the maximum displacement of the second premolar is greater than that of the terminal implant, but there is no difference between the mean (mean) under dispersed load statistically, due to the framework function of the bridge. The stress concentration appears around the neck of the abutments, on the contrary, a little stress is found around the apical portion of the second premolar. When the load concentrates on-to the abutments, the displacement and stress value increase obviously.


CONCLUSIONS
The attention should be paid to the load and occlusion of the terminal implant. This kind of bridge design may be used in clinical practice.
Chao
Y
Y
School of Stomatology, West China University of Medical Sciences, Chengdu 610041.
Yang
Y
Y
Du
C
C
D003757:Dental Implantation; D003799:Dental Stress Analysis / Q000379:methods; D003830:Denture, Partial, Fixed; D006801:Humans; D008963:Molar / Q000502:physiology*; D013314:Stress, Mechanical; D016474:Weight-Bearing / Q000502:physiology*