上颌尖牙是牙列中除第三磨牙外最易发生阻生的牙齿,对美观及咀嚼功能有重要作用。临床上对于垂直位或半垂直位阻生尖牙大多易于通过正畸牵引入牙弓,而水平阻生的尖牙矫治难度较大。该文报告1例通过外科开窗联合自制弹性牵引装置成功矫治成人上颌腭侧阻生尖牙,评价其治疗方法的可行性及疗效。 The maxillary canine is the most prone to occlusion in the dentition except for the third molars, which plays an important role in the appearance and chewing function. Clinically, for vertical or semi-vertical obturator impacted crenata tend to be easily pulled into the dental arch by orthodontic treatment, while the level of impacted canine orthodontic more difficult. This paper reports a case of successful surgical treatment of maxillary palatal incontinence canine by surgical fenestration and self-made elastic traction device to evaluate the feasibility and efficacy of the treatment.