[1]徐西红.下颌第二磨牙根管治疗失败病例（126例）原因分析[J].中国美容医学,2024,(4):133-135.
　XU Xihong.Analysis of the Causes of Root Canal Therapy Failure of 126 Mandibular Second Molars[J].Medical Aesthetics and Beauty,2024,(4):133-135.
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下颌第二磨牙根管治疗失败病例（126例）原因分析()
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《中国美容医学》[ISSN:1008-6445/CN:61-1347/R]

卷:
期数:
2024年4期
页码:
133-135
栏目:
出版日期:
2024-04-10

文章信息/Info

Title:
Analysis of the Causes of Root Canal Therapy Failure of 126 Mandibular Second Molars
文章编号:
1008-6455（2024）04-0133-03
作者:
徐西红
(承德市口腔医院口腔内科 河北 承德 067032 )
Author(s):
XU Xihong
(Department of Oral Medicine, Chengde Stomatological Hospital , Chengde 067032, Hebei, China)
关键词:
下颌第二磨牙; 根管治疗; 失败; 原因
Keywords:
mandibular second molar;  root canal treatment;  failure;  reason
分类号:
R781.33
文献标志码:
A
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。
Abstract:
Objective Analyze the causes of root canal therapy failure of mandibular second molars. Methods 126 patients (126 aff ected 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 underfi lled, 21 were overfi lled; 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.

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更新日期/Last Update: 2024-04-19