在个别前牙牙列缺损时,在基牙邻面设固位体,可减少所惯用的局部可摘义齿修复的弊端,如局部可摘义齿的基托大,异物感明显或有个别患者塑胶过敏。用固定义齿修复,则预备基牙时需切割健康牙体组织。因此在临床应用中,采用邻面卡环修复前牙缺损,效果比较理想。 In the individual anterior dentition defect, set in the abutment abutment retainer, can reduce the commonly used local removable denture malpractice, such as partial removable denture base large foreign body sensation or individual patients with plastic allergy . Repair with a fixed denture, the preparation of abutments need to cut healthy tooth tissue. Therefore, in clinical applications, the use of adjacent snap ring to repair anterior defect, the effect is ideal.