下颌第二磨牙根管治疗失败病例(126例)原因分析  

Analysis of the Causes of Root Canal Therapy Failure of 126 Mandibular Second Molars

作　　者：徐西红 XU Xihong(Department of Oral Medicine,Chengde Stomatological Hospital,Chengde 067032,Hebei,China)

机构地区：[1]承德市口腔医院口腔内科,河北承德067032

出　　处：《中国美容医学》2024年第4期133-135,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:分析126例患者下颌第二磨牙根管治疗失败的原因。方法:选取笔者医院2017年10月-2021年8月门诊接诊的下颌第二磨牙根管治疗失败的126例患者(共126颗患牙)为研究对象,回顾性分析患者的临床资料,总结下颌第二磨牙根管治疗失败的原因。结果:126颗患牙中,遗漏根管48颗,欠填26颗,根管超充21颗,根充不致密35颗,牙根纵裂2颗,冠部折裂9颗;冠渗漏15颗,根管内器械分离3颗,底穿2颗,髓腔入路欠佳13颗,根管内台阶、偏移、侧穿17颗。结论:下颌第二磨牙根管系统复杂,解剖位置操作不方便,造成治疗失败的原因较多,主要有解剖学因素和医源性因素,重在预防,对治疗失败患牙应综合考虑相关因素采取合理的治疗方案。Objective Analyze the causes of root canal therapy failure of mandibular second molars.Methods 126 patients(126 affected teeth)with root canal therapy failure of mandibular second molars who were hospitalized in the hospital from October 2017 to August 2021 were selected as the study objects.The clinical data of patients were analyzed retrospectively,and the reasons for the failure of root canal therapy of mandibular second molars were summarized.Results 48 of the 126 teeth were missing root canals,26 were underfilled,21 were overfilled;35 were not dense,2 roots were longitudinally fractured,and 9 crowns were fractured,15 crowns leaked,there were 3 instruments in the root canal separated,2 at the bottom,13 with poor access to the medullary cavity,17 root canals had steps,off sets and lateral penetrations.Conclusion The root canal system of the mandibular second molar is complicated,and the anatomical position is inconvenient to operate.There are many reasons for treatment failure,mainly including anatomical factors and iatrogenic factors.The emphasis is on prevention.For the teeth with treatment failure,a reasonable treatment plan should be taken based on relevant factors.

关 键 词：下颌第二磨牙 根管治疗 失败 原因 

分 类 号：R781.33[医药卫生—口腔医学]