上颌死髓磨牙2种拔除方法的比较

A comparison of two methods of extracting upper nonvital molars

目的:比较拔除上颌死髓磨牙时,传统的锤挺法与微创拔牙法的优缺点。方法:对300例上颌死髓磨牙病例,随机采用锤挺法(对照组)拔除或微创拔牙法(实验组)拔除,对手术时间及术中、术后并发症进行对比观察和统计学分析。采用SPSS13.0软件包对数据进行t检验及χ2检验。结果:实验组手术时间比对照组显著缩短(P<0.05),术中及术后并发症发生率显著降低(P<0.05)。结论:微创拔牙法使上颌死髓磨牙的拔除更加方便,值得临床推广。

PURPOSE：To study the feasibility of extraction of upper nonvital molars using minimally invasive instruments.METHODS：Three hundred teeth with nonvital pulps were randomly divided into two groups.One hundred fifty teeth in the experimental group were extracted with minimally invasive instruments,while 150 teeth in the control group were extracted with routine instruments.The operation time,intraoperative and postoperative complications were recorded to assess the effects of the methods.Student’s t test and Chi-square test in SPSS13.0 software package were used for statistical analysis.RESULTS：The operation time of the experimental group was significantly shorter than that of the control group（P＆lt;0.05）,the intraoperative and postoperative complication incidence rate of the experimental group was significantly lower than that of the control group（P＆lt;0.05）.CONCLUSIONS：The minimally invasive tooth extraction is superior to the routine tooth extraction in extraction of upper nonvital molars.