[Post diameter optimal design of over dentures attachment].
OBJECTIVE
The effect of the post diameter design of over dentures attachment on the strss distribution of pulpless dentine was investigated in this study.


METHODS
The optimal post diameter design was computed with a finite element method and analyzed with graphic method.


RESULTS
The changes between the dentine stress value and the post diameter was parabola relationship. The optimal diameter of attachment post was 1.55 mm for this study model. The dentine thickness which retained above apical foramen 4 mm was 0.83 mm.


CONCLUSIONS
This investigation provides a series of valuable parameters for making a post diameter optimal design of over dentures attachment.
Luo
X
X
School of Stomatology, Fourth Military Medical University, Xi'an 710032.
Ouang
G
G
Jia
A
A
D003779:Denture Design; D003834:Denture Precision Attachment; D006801:Humans