超声冲洗技术应用于牙髓炎一次性根管治疗的临床疗效观察

Clinical value of ultrasonic rinsing technique in the application of the one-time root canal therapy of pulpitis

目的:观察超声冲洗技术在牙髓炎一次性根管治疗术中的应用效果。方法:筛选牙髓炎病人397例共412颗患牙,随机分为2组,观察组198例205颗患牙,对照组199例207颗患牙。所有病人均在局麻下行镍钛器械根管预备,观察组以2%次氯酸钠和0.9%氯化钠溶液分别注入超声震荡仪冲洗根管,对照组用5 mL注射器以2%次氯酸钠和0.9%氯化钠溶液冲洗根管。2组病人冲洗完成后均干燥根管热压胶充填,记录治疗后侧支根管充填率和充填1周后的疼痛反应以及1年后的疗效。结果:观察组侧支根管充填率明显高于对照组(P<0.01);对照组疼痛发生率明显高于观察组(P<0.01);2组远期临床疗效差异无统计学意义(P>0.05)。结论:超声冲洗技术在牙髓炎病人一次性根管治疗过程中明显提高了侧支根管的充填率,减少了根管治疗术后的疼痛反应,提高了根管治疗术的疗效。

Objective:To observe the clinical effects of the ultrasonic rinsing technique in the one-time root canal therapy for pulpitis patients.Methods:Four hundred and twelve teeth in 397 pulpitis patients were randomly divided into the observation group(205 teeth of 198 pulpitis patients)and control group(207 teeth of 199 pulpitis patients)randomly.The nickel titanium root canal in all patients were prepraed under local anesthesia,and the root canal in the observation group and control group were flushed with 2%sodium hypochlorite and 0.9%sodium chloride solution using ultrasonic oscillometer and 5 mL syringe,respectively.After flushing,all patients were filled with dry root tube thermocompression gel.The filling rate of lateral root canal,pain response after 1 week and curative effects after 1 year of treatment were recorded in two groups.Results:The filling rate of lateral root canal in observation group was significantly higher than that in control group(P<0.01).The incidence rate of pain in control group was significantly higher than that in observation group(P<0.01).There was no statistical significance in long-term clinical efficacy between two groups(P>0.05).Conclusions:The ultrasonic rinsing technique in the one-time root canal therapy of pulpitis can improve the filling rate of lateral root canal,reduce the pain response,and improve the curative effect of root canal treatment of patients.