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目的：探索新的固位途径，解决前牙各类缺损修复难的问题。方法：用高速涡轮手机，制备多榫槽固位沟，经一般牙面清洁处理后即可用光固化材料充填修复缺损部位。结果：经临床１２０例，１３６颗牙修复后随访观察１～２年，固位良好，无１例修复体自行脱落，无牙髓并发症。结论：多榫槽固位沟修复前牙各类缺损，不需酸蚀处理，固位强度高，突破了传统支架式的修复方法
Objective: To explore new ways of fixation and to solve the problems of various types of defect repair of anterior teeth. Methods: Using high-speed turbine mobile phone, to prepare multiple mortise and tenon groove retention groove, the general tooth surface cleaning can be cured with light-cured material to fill the defect site. Results: After the clinical treatment of 120 cases and 136 teeth, the patients were followed up for 1 to 2 years with good retention. None of the prosthesis was detached on its own and had no complications of dental pulp. Conclusion: Multiple mortise-retention trenches repair various types of anterior teeth defects without acid etching and high retention strength, breaking through the traditional scaffold repair methods