种植初期稳定性的意义及其参数标准

通过文献复习,梳理明确种植初期稳定性的性质、意义、测试、参数以及影响因素.种植初期稳定性即种植体-骨界面的锚固力,是一种纯粹的机械现象,其意义在于维持种植体静立不动状态,使新骨不受干扰地生长附着在种植体表面,避免纤维组织生长,最终达到骨整合.临床比较常见的初期稳定性测试方法有植入扭力(insertion torque,...

The significance and parameter standards of the implant primary stability

The nature,significance,parameters,influencing factors and testing of implant primary stability were studied by a literature review.Primary stability is a kind of anchorage force at the interface between the implant and bone,and it is merely mechanical.The significance of primary stability is to keep the implant unmovable so that the new bone can grow undisturbed on the surface of the implant without interference from fibrous tissue.The implant is fi?nally bound to the bone by osseointegration.The most common assessments of primary stability are insertion torque(IT),the implant stability quotient(ISQ)of the resonance frequency analysis(RFA)and Periotest.IT is more commonly used to directly imply initial stability.At present,no consensus has been reached regarding the concrete parameters of prima?ry stability to predict osseointegration.Implant osseointegration could be developed through all phases of primary stabili?ty.However,the excessive primary stability would cause mini?bone fractures,followed by bone necrosis at the interface and the final failure of implantation.Primary stability is influenced by three factors:implant design,bone condition of al?veolar bone,and surgical technique.Under the condition of a lack of primary stability and immediate implantation,there may be the possibility of successful osseointegration.Therefore,it is necessary to re?examine the accuracy of the current elaboration on the primary stability.It is related directly to whether the clinic can choose the appropriate im?plant treatment path.