根管显微镜下应用连续波热垂直加压技术充填根管的疗效分析

Effect of root canal filling with warm vertical condensation under dental operating microscope

目的:评价根管显微镜下应用连续波热牙胶垂直加压技术行根管充填的临床疗效。方法:选择上颌前牙单、直根管患牙50颗为研究对象,采用ProTaper机用镍钛锉预备至F3锉,随机分为2组,每组25颗患牙。分别采用常规方法和显微镜下连续波热垂直加压技术充填根管。应用术后即刻X线片和术后2年X线片分别进行2组患牙根管充填质量和术后2年的临床疗效比较,采用SPSS10.0软件包进行统计学分析,充填质量和临床疗效比较采用χ2检验。结果:根管显微镜下操作的充填质量高于常规充填操作(P<0.05)。术后2年复查显示,显微镜下操作的根管治疗成功率与常规操作组间无显著差异(P>0.05)。结论:应用显微镜进行连续波热牙胶垂直加压充填根管,能有效提高根管充填质量,值得临床推广使用。

PURPOSE： To evaluate the clinical effect of root canal filling with warm vertical condensation with or without dental operating microscope.METHODS： Fifty maxillary anterior teeth with single,straight canals were divided into two groups.Each tooth was instrumented by X-Smart rotary nickel-titanium files to a master file 0.06 taper F3,root canal in the group 1 was obturated with warm vertical condensation using system B for downpack and Obtura Ⅱfor backfilling without dental operating microscope;root canal in the group 2 was obturated using the same methods under the dental operating microscope.The effect of quality of root canal filling was evaluated by X-ray radiograph post-operatively and after two years of treatment.SPSS10.0 software package was used for Chi-square test.RESULTS： Significant difference was found between the two groups on the quality of root canal filling post-operatively（P﹤0.05）,with better quality of root canal filling in the group using dental operating microscope,no significant difference was found between the two groups after two years（P﹤0.05）.CONCLUSIONS： Warm vertical condensation under the dental operating microscope is a good method for root canal filling.It may improve the quality of root canal filling effectively,and therefore,worthy of clinical application.