Stress Distribution In Bone Around New Dental Implant Studied By Three-dimensional Finite Element Analysis

Oral implantology provides a reliable and safe solution to replace missing teeth. Mechanical loading,in fact ,is thought to be the critical factor determining the long-term survival of endosseous implants. The axial load is the main load in the chewing force and the bone tissue has the best capability to support pressing stress,so the bone supporting the implant must have enough areas to support the stress. When the residual alveolar bone is less and the alveolar ridge is narrow caused by bad absorbtion, the large and long implants can't be chosen. It need a short implant that the supporting bone around the it can afford enough areas supporting stress. The implant studied in this experiment is designed for the need. This study is a part of series studies of the new implant system,which is aimed at comparing stress distribution in bone with different densities around new implants and cylinder implants in different loads by three-dimension finite element analysis method,thus provide academic and experimental basis for further designs and improvements of dental implants.This study uses the method of model switch by computer simulation technic to built the implant three-dimension model and the implant socket in bone inosculated with the implant fixture,then put the implant into the socket in bone and...