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目的:评价锥形束CT(CBCT)结合显微超声技术诊断治疗老年疑难根管的临床效果。方法:选择71例老年患者的124个均因传统方法根管治疗失败的疑难根管作为研究对象,通过CBCT检查判断根管数目、根管口的位置、根管弯曲角度,应用显微超声技术去除钙化组织,探查并疏通根管,统计根管疏通成功率。结果:124个疑难根管中,成功疏通根管108个(其中包含寻及11个遗漏根管),成功率87.1%,牙位和钙化位置对疏通率有影响;两个根管发现根裂,建议拔除。结论:CBCT与显微超声技术联合使用,为临床诊治老年疑难根管提供了有效的方法。
Objective: To evaluate the clinical effect of cone beam computed tomography (CBCT) combined with micro-ultrasonography in diagnosis and treatment of elderly patients with difficult root canal. Methods: A total of 124 elderly patients were selected from the traditional root canal therapy failed root canal as the research object. CBCT examination to determine the number of root canal, root canal position, root canal bending angle, the application of micro-ultrasound technology Removal of calcified tissue, probing and dredging root canal, statistical success rate of canal dredging. Results: Of the 124 difficult root canals, 108 were successfully dredged (including 11 missing root canals), the success rate was 87.1%. The location of the tooth position and calcification affected the dredging rate. The root canal cleft was found in the two root canals , It is recommended to remove. Conclusion: The combination of CBCT and microscopic ultrasound technology provides an effective method for clinical diagnosis and treatment of elderly patients with difficult root canal.