口腔手术显微镜在非手术根管治疗中的应用

Use of dental operating microscope in non-surgical endodontic treatment

口腔手术显微镜因具有良好的光源和适度的放大倍数,现已广泛应用于根管治疗尤其是疑难根管的治疗中,显著提高了临床患牙的保留率。其在非手术根管治疗中的应用,已由过去主要用于牙体牙髓疑难病例,发展到用于根管治疗术的各个环节,如开髓、清理、预备、充填等。本文通过回顾相关文献,结合术者近16年的临床显微根管治疗体会,重点介绍口腔手术显微镜在定位隐蔽遗漏根管口、疏通细小钙化根管、去除根管内阻塞物、处理根管台阶和根尖偏移、修补髓壁穿孔等的治疗要点,期望对有志于微创牙髓治疗的临床医生有所借鉴。

Dental operating microscope is recommended to complicated root canal therapy, for it could provide increased lighting and superior magnification, so that the survival rate of tooth is highly increased. More refined access of cavity preparation, canal cleaning, shaping and obturating are realized under microscope. This article combined literature reviews with the writers clinical experience, and it aims at helping clinicians to improve their ability to more accurately performance and minimally invasive endodontic procedures, such as locating hidden canals obstructed by calcifications, canals reduced in size, removing materials, reducing ledge formation, apical transportation, and repairing perforations.