[The effects of relieving space to stress distribution of mandibular implant-supported overdenture].
OBJECTIVE
To study the effects of relieving space to stress distribution of mandibular implant-supported overdenture under shocking loads.


METHODS
3-DFE method was used to make a comparative study of the effects of relieving space to stress distribution of the implant-supported overdenture under shocking loads.


RESULTS
The application of stress relieving space can lower the stress peaks of the implants, periimplant tissue and the denture base. The highest stress of compression in lateral bone-implants interface reduced 52%.


CONCLUSIONS
The application of stress relieving space can be helpful to protect implants, periimplant tissue and denture base.
Song
W
W
Department of Stomatology, Third Clinical Hospital of Norlman Bethune Medical University, Changchun 130041, China.
Yin
W
W
D019094:Dental Prosthesis, Implant-Supported / Q000379:methods*; D003799:Dental Stress Analysis; D006801:Humans; D008334:Mandible / Q000503:physiopathology*; D013314:Stress, Mechanical