在临床修复工作中,常遇到一些患者,因牙列后部功能牙过早脱落,未及时修复,长期用前牙咀嚼,造成牙弓前部余留牙牙本质过度磨耗,导致颌位降低,咀嚼功能低下,肌肉酸痛,而迫切要求修复治疗。对于这类患者以往多采用可摘义齿修复[1,2]。圆锥型套筒冠义齿因兼顾固定与活动义齿的优点[3,4], In the clinical repair work, often encountered some patients, due to the back of the dentition function teeth prematurely shed, not repaired in time, chewing with the long-term use of the anterior teeth, resulting in excessive wear of the dental arch in front of the residual teeth, leading to jaw reduction, Chewing poorly, muscle soreness, and urgently require repair treatment. For such patients in the past more use of removable denture repair [1,2]. Conical sleeve crown denture due to the advantages of both fixed and movable dentures [3,4],