摘要
目的:探讨显微根管治疗技术对下颌磨牙C形根管系统的临床诊治疗效。方法:选择临床上需行根管治疗术且为C形根管的下颌磨牙79例,机用镍钛根管锉冠向下法预备主根管,显微镜下使用超声与K锉双敞法预备峡区,热牙胶垂直加压充填根管。记录根管分型、根管预备过程中并发症的情况,通过临床症状和体征、术前后X线片,半年随访X线片评价疗效。结果:C形根管系统中C1型较少见(12.66%);C2型发生率较高(62.02%),C2、C3型的近舌根管易超填(超填发生率:C2型4.08%;C3型15%)。治疗过程中未发生器械折断、管壁侧穿等并发症,半年回访率为72.15%,随访病例中治疗成功率为91.3%。结论:C1、C2型具有较大的弧形带状根管,是临床治疗的难点;显微根管治疗术可以获得理想的疗效,值得临床推广使用。
AIM ： To evaluate the effectiveness of clinical treatment of C - shaped canal system in mandibular molars using a dental operating microscope （ DOM ）. METHODS ： Seventy - nine C - shaped mandibular molars were selected . The main canals of C - shaped canal system were instrumented by Ni - Ti instruments while the isthmus was by ultrasonic and K files under the DOM. All cases were obturated by vertical compaction technique. The types of C - shaped canal and in - operative complications were recorded . The effectiveness was evaluated by three radiographs per - case. RESULTS ： C2 type canals were more common than C1 type. The mesiolingual canals of C2 and C3 types were easily overobturated. There were no obvious complications during operation. Six months later, 91.3% C -shaped molars of patients who returned were proved successfully treated. CONCLUSION： It is difficult to treat C1 and C2 molar because of its C - shaped canal. The endodontic treatment with the use of DOM can make the therapy more successful.
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2009年第7期386-389,共4页
Chinese Journal of Conservative Dentistry
关键词
根管手术显微镜
下颌磨牙
C形根管
峡区
dental operating microscope
mandibular molar
C - shaped canal
isthmus
