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随着我国逐渐进入老龄化社会,老年牙髓病、根尖周病患者逐年增加。而现代口腔医疗诊治水平以及人们综合素质的提高使得保存患牙、桩冠修复逐渐普及。根管治疗是治疗牙髓炎和根尖周炎最有效的方法,也是保存患牙、桩冠修复的基础。但是由于增龄性变化,老年人的根管多存在细小或钙化情况,使得根管治疗的难度加大,治疗成功率也受到很大影响[1]。同时,由于下前牙根管解剖形态复杂、变异较多,根管壁近远中向较薄,治疗过程中易造
As China gradually enters the aging society, elderly patients with endodontic diseases and periapical diseases increase year by year. The modern diagnosis and treatment of oral health and the improvement of people’s overall quality makes the preservation of teeth, crown restoration gradually popular. Root canal therapy is the most effective method for the treatment of pulpitis and apical periodontitis. It is also the basis for the preservation of diseased teeth and crown restoration. However, due to age-related changes, the elderly there are many small or calcified root canal more difficult to make root canal treatment, treatment success rate has also been greatly affected [1]. At the same time, due to the anatomical anatomy of the lower anterior root canal complex, more variation, near and far to the root canal wall thin, easy to create during the treatment