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年轻恒牙脱出性损伤后牙髓预后及相关因素分析
引用本文:管悦,秦满. 年轻恒牙脱出性损伤后牙髓预后及相关因素分析[J]. 中华口腔医学杂志, 2008, 43(9)
作者姓名:管悦  秦满
作者单位:100081,北京大学口腔医学院·口腔医院儿童口腔科
摘    要:
目的 评估年轻恒牙脱出性损伤后牙髓组织的预后,分析可能影响预后的相关因素.方法 对2000年1月至2006年12月于北京大学口腔医学院·口腔医院儿童口腔科就诊且资料完整、观察期≥6个月的157例(238颗牙)年轻恒牙外伤病历进行回顾性研究,记录患者性别及年龄、外伤类型、外伤牙位、牙根发育情况、外伤后就诊时间、是否接受急诊处理以及牙髓组织预后类型.应用Logistic回归模型分析与牙髓预后相关的因素.结果 符合纳入标准的外伤病历共157份,外伤牙238颗,其中38颗(16.0%)出现牙髓坏死,5颗(2.1%)出现髓腔钙化,牙髓存活195颗(81.9%).挫入移位牙髓坏死发生率最高(66.7%).牙根发育情况和外伤类型与牙髓组织预后具有显著相关性(P<0.05).结论 牙齿脱出性损伤中,挫人移位最易发生牙髓坏死.牙根发育情况和外伤类型与脱出性损伤牙齿的牙髓预后具有相关性.

关 键 词:牙损伤  牙髓坏死  牙髓钙化

A retrospective study of pulp healing after Iuxation injuries
GUAN Yue,OIN Man. A retrospective study of pulp healing after Iuxation injuries[J]. Chinese journal of stomatology, 2008, 43(9)
Authors:GUAN Yue  OIN Man
Abstract:
Objective To evaluate the prognosis of luxated permanent teeth and analyze the associated factors of pulp healing after luxation injuries. Methods The dental records of patients presented for treatment due to luxation injuries at the Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology from January 2000 to December 2006 were collected, and the follow-up period was not shorter than six months. The following information was recorded, age and gender; type of injury; location of injured tooth; stage of root development; time elapsed between the injury and the first dental care;emergency treatment or not; pulp healing. Logistic regression was used to compare qualitative data and determine the associated factors of pulp healing after luxation injuries. Results The study was comprised of 157 patients with 238 luxated permanent teeth. The frequency of pulp necrosis was 16.0%, dental pulp calcification 2.1% and pulp survival 81.9%. The frequency of pulp necrosis was highest in intrusion(66.7%). The factors significantly affecting pulp healing were stage of root development and type of injury.Conclusions The risk of pulp necrosis was greatest in intrusion. The stage of root development and the type of injury were significant factors related to pulp healing after luxation injuries.
Keywords:Tooth injuries  Dental pulp necrosis  Dental pulp calcification
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