下颌第一磨牙近中三根管的临床研究  

Clinical study of the three mesial root canals of mandibular first molars

作　　者：黎远皋[1] 王继朝[1] 周欣[1] 徐林涛[1] 王洪[1] 

机构地区：[1]北京大学第三医院口腔科,100083

出　　处：《实用口腔医学杂志》2008年第3期397-400,共4页Journal of Practical Stomatology

摘　　要：目的:观察下颌第一磨牙近中三根管的临床情况。方法:采用根管口探针探查和根管显微镜观察近中颊根管口和近中舌根管口之间浅沟或暗线并结合X线片的方法,研究近中三根管的临床发现率及形态。结果:222例下颌第一磨牙中有13例存在近中三根管,发现率为5.85%。结论:下颌第一磨牙近中三根管的临床发现率很低,根管显微镜的应用有助于提高发现率。Objective：To investigate the clinical incidence of the three mesial root canals of mandibular first molars. Methods： Incidence and morphology of the three mesial root canals of mandibular first molars were determined by probing the fissure or grooves between the mesiobuccal and mesiolingual root canal orifices and X-ray analysis. Results： Of the 222 mandibular first molars, 13 of the molars had three mesial root canals. The incidence rate was 5.85 %. Conclusion： Although the incidence rate of the three mesial root canals of mandibular first molars was very low, the dental operative microscope was helpful for the diagnosis.

关 键 词：下颌第一磨牙 近中三根管 发现率 

分 类 号：R781.05[医药卫生—口腔医学]