上颌中切牙埋伏阻生的正畸治疗:28例报道  

Orthodontic treatment for the impacted upper central incisors:Report of 28 cases

作　　者：汪隼[1] 束陈斌[1] 樊林峰[2] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔预防,儿童科上海市口腔医学重点实验室,上海市口腔医学研究所 [2]上海交通大学医学院附属第九人民医院放射科,上海200011

出　　处：《上海口腔医学》2006年第4期437-440,共4页Shanghai Journal of Stomatology

摘　　要：目的:通过对无萌出能力的埋伏阻生上颌中切牙进行外科开窗术+正畸牵引治疗,探讨埋伏上颌中切牙正畸牵引治疗的效果。方法:对28例30颗无萌出能力埋伏阻生的上颌中切牙进行外科开窗术+正畸牵引治疗。结果:28例埋伏牙中,1例已牵引萌出,因间隙不足,家长拒绝拔牙而未排齐;1例牵引3个月后萌出,因无时间复诊而放弃治疗,未排齐;其余均牵引入列,28例埋伏牙平均破龈时间为4.5个月,最长为10个月,最短为1个月;28颗埋伏牙牙髓活力测试全部正常,未见根吸收、黏连;4颗唇侧出现1￣4mm的牙龈退缩;2颗分别出现1.0mm和2.5mm的边缘骨丧失。结论:治疗的时机、合理的矫治方法、减少手术创伤、牵引力的大小以及支抗和炎症的有效控制是治疗成功的关键。PURPOSE： To study the effect of treating the impacted upper central incisors which couldn＇t erupt by surgical exposure and orthodontic traction. METHODS： 28 cases with 30 impacted upper central incisors were treated with surgical exposure and orthodontic traction. RESULTS： In 1 case, the tooth erupted by traction, but the space was not enough, the child＇s parents refused extraction of the teeth, which resulted in malalignment of the maxillary incisors. In 1 case, the tooth erupted after 3 months of traction, but the patient gave up further treatment because he had no revisit time. In the remaining 26 cases all the teeth moved into correct position. The average eruption time was 4.5 month（rang： 1 to 10 months）. 28 impacted teeth had vital pulp. No root absorption and conglutination were found. CONCLUSIONS： The time of treatment, reasonable orthodontic method, less operative trauma, appropriate traction force, anchorage, control of inflammation are the keys of successful treatment.

关 键 词：上颌中切牙 埋伏牙 牙牵引 

分 类 号：R783.5[医药卫生—口腔医学]