[A three-dimensional finite element analysis of the correlation between lengths and diameters of the implants of fixed bridges with proper stress distribution].
OBJECTIVE
The study is designed to investigate the correlation between lengths and diameters of the implants of fixed bridges with proper stress distribution. Meanwhile, the correlation between the diameter of the implants and the size of a mandible bone is evaluated by stress analysis.


METHODS
According to the stress around the implants of an implant fixed bridge with proper stress distribution, especially peak stress, a three-dimensional finite element method was used to determine the correlation between diameters and lengths of implants with their diameters or lengths changing.


RESULTS
The peak stress surrounding the implants in fixed bridge supported by clinical implants that were commonly used was figured out, and the correlated amount of diameters or lengths of the implants were achieved. Furthermore, a correlation curve of diameter and length of the implants was made. But the correlated amount of diameters or lengths of the implants were not found in this model.


CONCLUSIONS
The proper stress distribution of implants with different implant sizes can be achieved by adjusting diameters or/and lengths of implants. The selection of the implant size is related to the limited model size. Being a preliminary theory, the results will be proved to be clinically acceptable to the size selection of implants.
Zhang
L
L
School of Stomatology, Bethune Medical University.
Zhou
Y
Y
Meng
W
W
D000328:Adult; D015921:Dental Implants; D003830:Denture, Partial, Fixed; D020342:Finite Element Analysis; D006801:Humans; D066298:In Vitro Techniques; D013314:Stress, Mechanical
D015921:Dental Implants