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目的观察机用镍钛根管锉预备根管后一次性根充的临床疗效。方法选取2002年7月—2009年7月我院口腔内科门诊就诊的患者,随机分为治疗组和对照组,治疗组用镍钛根管锉采用逐步深入法预备根管后进行一次性根充,对照组以手持械常规法预备根管后进行一次性根充,经过1年观察对比其疗效。结果与对照组相比,治疗组术后2周根尖周围组织反应轻,患者痛苦小,差异有统计学意义(P<0.01);1年时疗效无统计学意义(P>0.05),二种方法对急性牙髓炎、慢性牙髓炎、牙髓坏死和慢性尖周炎均有良好的疗效。结论机用镍钛根管锉预备根管后一次性根充比手持器械预备根管省时省力且简便,使得根管治疗术一次法在临床上推广成为可能。
Objective To observe the clinical curative effect of one-time root canal filling after machine-made nickel-titanium root canal file preparation. Methods Patients from July 2002 to July 2009 in our department were randomly divided into treatment group and control group. The patients in the treatment group were treated with the nickel-titanium root canal file and gradually advanced to prepare the root canal. Control group with hand-held conventional method of preparation of root canal after a one-time root canal, after 1 year of observation compared its efficacy. Results Compared with the control group, the response of the tissue around the root tip was lighter in 2 weeks after operation in the treatment group, with less pain, the difference was statistically significant (P <0.01); the effect was not statistically significant at 1 year (P> 0.05) The method of acute pulpitis, chronic pulpitis, pulp necrosis and chronic periapical have good effect. Conclusions After the preparation of root canal with machine nickel-titanium root canal file, the one-time root canal preparation is more time-saving, labor-saving and easier than the preparation of root canal with hand-held instrument, which makes it possible to promote root canal therapy in clinic.