目的体会对年轻恒牙活髓切断术的临床治疗效果。方法对采用活髓切断术的35例(38颗)冠折的年轻恒牙进行1～3年的临床观察。结果 35例(38颗)年轻恒牙外伤冠折的活髓切断术治疗成功36颗,失败2颗,成功率94.73%。结论对于冠折露髓的年轻恒牙治疗,活髓切断术是成功而有效的方法。 Objective To understand the clinical treatment of young permanent pulp pulpotomy. Methods Thirty-five (38) coronal fractures of permanent permanent teeth with vital pulpotomy were performed for 1 to 3 years. Results Thirty-five (38) young patients with successful permanent pulpotomy underwent successful pulpotomy, of which 36 had successful failure. The success rate was 94.73%. Conclusions For the treatment of young permanent teeth with crown demyelination, live pulpotomy is a successful and effective method.