牙齿矫正治疗之前,暴露腭侧阻生尖牙的各种手术,文献中己有报道。但是,关于倾向唇侧的阻生尖牙则很少报道。单纯软组织切除术是不适当的,因为这种操作裸露了牙齿的附着牙龈而容易造成牙周疾病。作者应用断层粘膜瓣(split—thickness flap)法可以暴露位于唇侧或中央的阻生尖牙而仍然使附着牙龈围绕在牙颈缘。阻生尖牙通过临床和X线检查而准确定位以后,画出一个蒂在粘膜皱襞而尖在牙槽 Prior to orthodontic treatment, various procedures for exposing palatal incontinence canines have been reported in the literature. However, impacted canines on the leaning lip are seldom reported. Simple soft tissue resection is not appropriate, because this operation exposed the teeth attached to the gums and easy to cause periodontal disease. Using the split-thickness flap method, the authors can expose impacted canines located on the labial or central side while still surrounding the attached gums at the cervical margin. Impacted canines by clinical and X-ray examination and accurate positioning after drawing a pedicle in the mucosal folds and pointed in the alveolus