牙髓切断术与牙髓摘除术在无症状深龋露髓乳牙治疗中的现状调查

目的：对无症状深龋机械性露髓乳磨牙的牙髓治疗的选择进行调查并分析。方法：2014年10月－2015年2月向不同地区452位口腔全科及儿童口腔专科医生发放问卷，进行调查。数据采用SPSS18．0软件进行统计学分析。利用χ2检验明确不同因素对医生选择治疗方法的影响。结果：343名样本人群中，深龋机械性露髓患牙治疗时仅有131名（38．19%）医生选择牙髓切断术，212名（61．81%）选择牙髓摘除术。医生的选择与其从事儿童口腔诊疗工作的时间及所在城市的经济因素有关（P<0．05）。选择牙髓切断术的医生中，87．78%的人认为牙髓切断术可以保存部分活髓，进而维持乳牙牙根的正常吸收，对继承恒牙的影响较小；选择牙髓摘除术的医生中，有172人（81．13%）认为该类患牙的牙髓状态不易判断，进行牙髓切断术后失败率较高。结论：由于主客观条件的限制，国内口腔医生对于深龋机械性露髓乳牙的治疗普遍采用牙髓摘除术，牙髓切断术的普及率较低。

A survey on the current status of choice for pulpotomy and pulpectomy in mechanically pulp exposed primary teeth with deep caries

Objective:A survey was carried to investigate the choice of pulp therapy in mechanically pulp exposed primary teeth with deep caries among general dentists and pediatric dentists,hoping to provide theoretical basis for the treatment of this disease. Method:Questionnaires were given out to 452 dentists from different cities during August and December in 2014. Software SPSS version 18.0 was used for statistical analysis and x2 test was used to make it clear which factor would further affect dentists'choice. Result:Among the 343 dentists under investigation,131 (38.19 %)would select pulpotomy for mechanically pulp exposed primary teeth with deep caries while 212 (61.81 %)would chose pulpectomy. Working experience and working place would affect the choice for dentists (P< 0.05). For those who choose pulpotomy, 87.78 % thought it could preserve the vitality for pulp to maintain the normal procedure of primary root resortption. For those who choose plupectomy,172 (81.13 %)dentists considered it was difficult to judge the inflammatory condition of the pulp,thus the prognosis for pulpotomy was unfavorable. Conclusion:Due to subjective and objective limitations,pulpecto-my was considered at large when treating mechanically pulp exposed primary teeth with deep caries for local dentists. More work was needed to promote the popularity for pulpotomy.