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复盖义齿是一种部分或全口的活动修复体。它的基托完全盖过一个或几个牙齿。因牙周病、牙髓病或过大的龋蚀已被诊断为无用的牙齿。可作牙周和牙髓治疗并磨短,改善冠根比率后作复盖义齿。保留牙根的理由:①预防或至少减轻牙齿摘除后发生的牙槽骨吸收;②余留牙根支持,有助于保护承受义齿(牙合)力的剩余牙嵴;③辅助义齿受侧向力时的稳定;④通过牙周膜保持自体感受神经系统。作者等于1969年以来制作了25O件以上的复盖义齿,将那些不适于作活动或固定
Overdenture is a partial or complete removable prosthesis. Its base completely covered one or a few teeth. Due to periodontal disease, endodontic disease or excessive caries has been diagnosed as useless teeth. Can be used for periodontal and endodontic treatment and wear short, improve the ratio of crown after the overdenture. Preserving the root causes: ① prevent or at least reduce alveolar bone resorption occurs after tooth removal; ② residual root support, helps to protect the residual teeth ridges (occlusal) forces remaining ridge; ③ auxiliary denture by lateral force Stability; ④ through the periodontal ligament to maintain the nervous system. The authors equate to more than 25O over-dentures since 1969, placing those who are unfit for activity or immobilization