超声波根尖倒预备在根尖切除术中的应用  

Ultrasonic root end preparation in apicectomy:clinical evaluation

作　　者：吴文蕾[1] 陈斌[1] 孙卫斌[1] 

机构地区：[1]南京大学口腔医学院附属南京市口腔医院牙周科,江苏南京210008

出　　处：《南京医科大学学报（自然科学版）》2010年第12期1764-1767,1777,共5页Journal of Nanjing Medical University(Natural Sciences)

基　　金：南京市医学科技发展专项项目资助(ZKX07022)

摘　　要：目的:回访分析采用超声波根尖倒预备的根尖手术术后1年临床疗效,并与常规根尖倒预备法对照分析。方法:回访分析根尖切除术病例98例,其中采用常规根尖倒预备(conventional technique,C组)的58例,采用超声波根尖倒预备(ultra-sonic root end preparation,U组)的40例。采用双盲分析法对这些病例的临床效果进行评估。结果:超声波根尖倒预备组(U组)的1年成功率为90.0%,其中切牙为92.6%,前磨牙为84.6%。常规根尖倒预备组(C组)的1年成功率为82.8%,其中切牙为91.2%,前磨牙为70.8%。结论:根尖倒预备能够提高根尖切除术的临床疗效。超声波倒预备比常规根尖倒预备的成功率高,超声波倒预备利于更严密地封闭根尖。Objective： The purpose of this study was to evaluate the potential benefit of an ultrasonic device in apical surgery on the outcome of treatment when comparing with conventional technique using a bur.Methods：A case-control study was used in a standardized treatment protocol.98 patients were treatment with an ultrasonic device or with a bur for preparation.One year after treatment the results were sorted and numbered by another clinician.The results were evaluated by a third dentist who was blinded for the therapy.Results：The overall success rate in the ultrasonic group was 90.0% and in the group treated with a bur 82.8%（P 〉 0.05）.In premolars,the difference in success rate was 84.6% in ultrasonic group and 70.8% in conventional group（P 〉 0.05）.Conclusion：The use of an ultrasonic device in apical surgery improved the outcome of treatment.Ultrasonic preparation could get better cannel obturation than conventional technique.

关 键 词：超声波根尖倒预备 根尖倒预备 根管外科 

分 类 号：R781.3[医药卫生—口腔医学]