牙本质折断恒牙牙髓预后影响因素logistic回归分析

目的：回顾性分析牙本质折断的恒牙牙髓预后及其影响因素。方法：对2012年2月至2014年3月就诊于我院口腔科的牙本质折断患者进行logistic回归分析，记录患者的治疗方法、年龄、性别、就诊时间、牙根发育情况、冠折近髓程度、松动度及就诊叩痛，分析治疗效果及牙髓预后情况，并分析影响牙髓预后的因素。结果：共收集到305例符合纳入条件的牙本质折断患者，共有患牙325颗。其中有248颗（占76.3%）牙髓存活或钙化，为治疗成功；77颗（占23.7%）发生了牙髓坏死，为治疗失败；牙本质折断行间接盖髓术的成功率为76.3%。冠折近髓程度、就诊叩痛与牙髓坏死率有显著相关性（P＜0.05）。患者年龄、性别等因素与牙髓坏死率无显著相关性（P＞0.05）。结论：牙本质折断后行间接盖髓术的成功率较高；冠折近髓程度、就诊时叩痛是判断牙髓预后的重要因素。

Retrospective study of the pulp prognosis and influence factors of dentin-fractured teeth

Objective: The dental pulp prognosis and influential factors of dentin-fractured permanent teeth were analyzed retrospectively. Methods: Retrospective analysis was performed on the dentin-fractured patients treated in the Department of Stomatology of our hospital during the period from February 2012 to March 2014. The associative information of patients such as sex, age, the treatment time and method, the teeth-root development, the extent of fracture close to dental pulp, the tooth mobility and treatment pain were recorded in detail. The therapeutic effect, prognosis of dental pulp and the factors influencing the prognosis of dental pulp were analyzed by retrospective analysis. Results: Totally 305 patients who met the inclusion criteria and 325 diseased teeth were collected. Among all the dentin-fractured teeth, pulp necrosis occurred in 77 teeth (23.7%) and pulp survived or calcification occurred in 248 teeth (76.3%). The success rate of indirect pulp capping on the dentin-fractured teeth was 76.3% and had a certain statistical significance. The extent of fracture close to dental pulp and the percussion pain of treatment were highly significantly correlated to the pulp necrosis rate (P<0.05), contrarily, there is no significant correlation between the pulp necrosis rate and the factors such as age and sex of patients (P>0.05). Conclusion: The indirect pulp capping on the dentin-fractured teeth can get a higher success rate. The extent of fracture close to dental pulp and the percussion pain of treatment can be the important factors to judge the prognosis of dental pulp.