Good Melissa-L, McCammon Andrew
Department of Restorative Dentistry, The Royal Hospitals, Belfast Health and Social Care Trust, Grosvenor Road, Belfast BT12 6BP, Northern Ireland.
Dent Update. 2012 Dec;39(10):703-8. doi: 10.12968/denu.2012.39.10.703.
Endodontic failures often require non-surgical retreatment. The most common root canal obturating material is gutta-percha (GP), used in conjunction with various sealers. GP removal can be undertaken thermally and/or mechanically with or without solvents, however, no published guidelines exist. Following a literature review, an audit was undertaken comparing current endodontic practice in Belfast Dental School with the other dental schools across the UK and Republic of Ireland. From the findings, Belfast Dental School decided to introduce rotary files and chloroform to its Conservation Clinic with restrictions for use of the latter, although solvent use is not recommended in every case.
Efficiency in removing both gutta-percha and root canal sealer would maximize the ability to disinfect the root canal system and therefore increase the likelihood of a successful outcome.
牙髓治疗失败通常需要进行非手术再治疗。最常用的根管充填材料是牙胶尖（GP），并与各种封闭剂联合使用。牙胶尖的去除可以通过热方法和/或机械方法进行，可使用或不使用溶剂，然而，目前尚无已发表的指南。在进行文献综述后，开展了一项审计，比较了贝尔法斯特牙科学院与英国和爱尔兰共和国其他牙科学院目前的牙髓治疗实践。根据研究结果，贝尔法斯特牙科学院决定在其保存诊所引入旋转锉和氯仿，并对氯仿的使用加以限制，尽管并非每种情况都推荐使用溶剂。
高效去除牙胶尖和根管封闭剂将最大限度地提高对根管系统进行消毒的能力，从而增加治疗成功的可能性。
