论文部分内容阅读
近年来,临床上广泛应用复盖义齿修复。复盖义齿修复在保存牙齿和牙槽骨,保持牙根的本体感受作用,增进全口义齿的稳定和固位都优于常规全口义齿修复。然而复盖义齿基牙龋患率高;存在进行性牙周萎缩,不利于口腔卫生;同时经根管治疗后的牙齿或牙根要作金属顶盖和附着体,时间和治疗费用都花费较多。由于存在这些缺点,不少人提出粘膜下保留活髓牙根支持全口义齿的修复方法。 Guyer报道保留两个活髓牙根,不作根管治疗,用高速牙钻将牙槽骨以上的牙冠切
In recent years, widely used in clinical overdenture repair. Overdenture restorations in the preservation of teeth and alveolar bone, to maintain the root of the root of the role of sensory, to improve the stability and retention of denture are better than conventional complete denture repair. However, there is a high prevalence of dental caries in the overdenture dentition. There is progressive periodontal atrophy, which is not good for oral hygiene. At the same time, the root or the root of the tooth or root treated by the root canal needs to be covered with more time and cost. Because of these shortcomings, many people propose that submucosal preservation of vital pulp root support for complete denture repair methods. Guyer reported retaining two vital roots, not for root canal treatment, high-speed dental drill will alveolar bone above the crown cut