口腔疾病防治2016，Vol.24Issue(8)：473-476,4.DOI:10.12016/j.issn.2096-1456.2016.08.008
口腔显微镜在上颌第一磨牙根管治疗及再治疗中的应用
The application of dental microscope in root canal treatment and retreatment of maxillary first molar
摘要
Abstract
Objective To evaluatethe detection rate, typing, and therapeutic effect of second mesiobuccal canals (MB2) of first molars under dental operating microscope. Methods 88 maxillary molars with the presence of MB2 through cone beam computed tomography (CBCT) were collected, in which 68 were received root canal treatment and 20 were received root canal retreatment because of the missing canal of MB2 respectively. The type of mesiobuccal root ca⁃nal in the former 68 maxillary molars were analyzed under CBCT. The 68 maxillary molars were divided into 2 groups, with 34 in each group. The experienment group received treatment under dental operating microscope, while the control group under naked eyes. MB2 detection rate, treatment and retreatment effect between two groups were compared. The latter 20 maxillary molars were also seperated into 2 groups, in which 10 cases were treated under microscope and 10 cases were treated under naked eye. The effect of retreatment was observed. Results The type of mesiobuccal root ca⁃nal in 68 maxillary molars under CBCT were mainlytypeⅡand typeⅢ, with the proportion of 77.9% (53 cases) and 22.1%(15 cases) respectively. The detection rate of MB2 in the experimental group was 100%, and 91.2%(30 cases) in the control group, a statistical difference can be found between 2 groups (P<0.05). 97.5%(33 cases) of the experimen⁃tal group was successfully treated, and 79.4% (27 cases) for the control group (P < 0.05). The success rate of retreat⁃ment under microscope was 60%(6 cases), which was significantly higher than that of the naked eye (P<0.05). In 3⁃month and 6⁃month follow⁃up, the treatment effect in experimental group was significantly better than the control group (P < 0.05). Conclusion Dental microscope can help to increase MB2 detection rate and improve treatment and re⁃treatment effect.关键词
口腔显微镜/MB2/探查/根管治疗/根管再治疗Key words
Microscope/MB2/Detection/Root canal treatment/Root canal retreatment分类
医药卫生引用本文复制引用
彭政宇,黄洁如,李志芳,温飞利,麦穗..口腔显微镜在上颌第一磨牙根管治疗及再治疗中的应用[J].口腔疾病防治,2016,24(8):473-476,4.基金项目
广东省自然科学基金 （）
