319例后牙折裂的原因分析  

Analysis on 319 Cases of Fracture of Posterior Teeth

作　　者：卢家祯 

机构地区：[1]北京市东城区口腔医院,北京100010

出　　处：《中国初级卫生保健》2006年第10期92-93,共2页Chinese Primary Health Care

摘　　要：目的研究后牙折裂的特点和临床表现,客观评价最佳的治疗和预防措施。方法回顾319例后牙折裂病例,归纳发病年龄与性别、好发牙位和诱发因素。拔除患牙148个,做保存治疗171个。结果后牙折裂好发于30～59岁,男女性别比为4∶3,上颌第一磨牙最多见,银汞合金充填者最易发生。结论经早期固定,折裂患牙可以保留2～5年。避免非功能咬合、积极诊治隐裂牙及合理的牙髓病治疗是预防的有效措施。OBJECTIVE To investigate the characteristics and clinical features of the fractures of posterior teeth and evaluate the therapeutic. METHODS The records of 319 cases with the fracture of posterior teeth were analyzed retrospectively. The clinical features were summed up.Extraction of teeth were performed in 148 patients, and the conservative therapies in 171. RESULTS The incidence of fractures of posterior teeth was highest in the 30-59 years.The rate between male and female was 4：3. The fractures of posteri teeth most occurred in the first molar of the maxilla with endodontic treatment. CONCLUSION The fractures of posterior teeth can be reserved for 2-5 years by early fixation,and prevented by avoiding dysfunctional bite, treating subclinical fracture , and using proper methods of treatment of endodontics.

关 键 词：后牙 牙折裂 病因 

分 类 号：R782.1[医药卫生—口腔医学]