前牙外伤性脱位大多可借助再植的方法得以保留,因此,牙再植是恢复咀嚼功能和牙齿美观的有效手段。现对我院1986年来完成的20例、24牙牙再植进行总结。临床资料:本组20例24牙,男14例,女6例,年龄最小14岁,最大56岁,术后观察6个月～12年,除1例因外伤前患慢性牙根炎、术后牙齿Ⅰ～Ⅱ°松动,有牙周袋形成外,其余再植牙无松动,牙周情况良好,摄片示牙龈无明显吸收。牙再植的年龄分布及牙位分布如表所示。讨论 1.年龄愈小效果愈好,在牙根尚未发育完全、根尖孔尚未封闭者效果尤佳;年龄较大者,因再生能力差,常伴有其它疾患,效果欠佳。本组中,1例男性,56岁,外伤前即有慢性 Most of the anterior traumatic dislocation can be retained by means of replantation, therefore, replantation of teeth is an effective means to restore chewing function and tooth appearance. Now in our hospital in 1986 to complete the 20 cases, 24 teeth replantations are summarized. Clinical data: The group of 20 patients with 24 teeth, 14 males and 6 females, the youngest 14 years old, maximum 56 years old, postoperative observation of 6 months to 12 years, except for 1 case of pre-traumatic chronic root inflammation, postoperative Dental Ⅰ ~ Ⅱ ° loosening, the formation of periodontal pockets, the remaining replantation without loosening, periodontal condition is good, the film shows no significant absorption of the gums. Age distribution of dental replantation and distribution of teeth as shown in the table. Discussion 1. The younger the effect of the better, the root has not yet fully developed, apical foramen has not been closed effect is particularly good; older, due to poor regeneration, often accompanied by other diseases, the effect is not good. In this group, one male, 56 years old, had chronic disease before the trauma