牙根牙冠联合折断是牙折中较常见的折断形式,保存治疗较为困难。近年来,有些学者对冠根联合纵折后牙的保存治疗进行了临床和病理学研究并取得了很大进展。但前牙冠根联合折断的保守治疗国内外则少见报道。我们自1981年开始对前牙冠根联合斜折和纵折的9例10颗患牙分别采用牙根垂直拉出桩冠修复法和钢丝结扎切割样修复法治疗,通过6～25个月的观察获得成功。现报告如下: Dental crown joint fracture is the most common fracture in the form of fracture, save treatment more difficult. In recent years, some scholars have done a great deal of clinical and pathological researches on the preservation and treatment of the root canals combined with vertical occlusion. However, the conservative treatment of anterior crown fractures is rarely reported at home and abroad. We started from 1981 on the anterior oblique crown and vertical fold of the 9 cases of 10 teeth were used to pull the vertical root crown and steel ligation and cutting repair method of treatment by 6 to 25 months of observation Success. The report is as follows: