可摘局部义齿卡环疲劳性能测试方法及研究现状

牙列缺损是老年人的常见口腔疾病,会给患者的生活造成诸多不便,不仅影响患者的咀嚼、发音和口颌系统健康,也会对患者的心理健康和生活质量产生不同程度的负面影响.牙列缺损常见的修复方式有种植义齿、固定义齿和可摘局部义齿.目前,虽然选择种植义齿的患者日趋增多,然而仍有很多患者由于身体原因、经济原因等无法选择种植义齿修复.可摘局部...

Research progress on fatigue performance test method of removable partial denture clasp

Dental defect is common in the elderly,which will cause a lot of inconvenience patients'life.It not only affects the health of chewing,pronunciation and stomatognathic system,but also have negative impact on mental health and quality of life.The common treatment options include implant denture,fixed partial dentures and removable partial dentures(RPD).At present,although the number of patients choosing implant denture is increasing,there are still many patients who cannot choose implant denture repair due to physical reasons and economic reasons.RPD are widely used in clinical practice because of their extensive indications,diverse repair effects and low treatment cost.Clasp is the main retainer of removable partial dentures and an important part of the normal executive function of denture,clasp fatigue is a common form of clinical denture failure,according in vitro test to simulate actual use in oral,has positive meaning in the choice of dental materials and denture design.In this paper,the selection of materials for testing abutment and clasp and the selection of testing environment for design of clasp fatigue performance testing methods are reviewed,and the prospect of its development is presented.