替牙期外伤性前牙完全脱位再植术的临床分析  

Clinical retrospective analysis of children for mixed dentition traumatic anterior teeth completely dislocation replantation

作　　者：赵然[1] 李凤和[1] 陈光[1] 

机构地区：[1]白求恩国际和平医院口腔科,河北石家庄050082

出　　处：《中国美容医学》2012年第10期1831-1833,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:探讨替牙期完全脱位前牙再植术后的效果和相关影响因素。方法:对48例患儿58颗完全脱位前牙治疗方法和临床疗效进行分析。脱位前牙再植后复诊行牙髓测试、牙周检查,2周牙髓活力阴性的患牙行根尖诱导成形术,6个月～3年根尖孔完全形成后行根管永久充填治疗。结果:再植术后3年,5颗患牙活力存在,牙髓存活率达8.62%;53颗患牙行根管治疗术后行X线检查,25颗患牙牙根牙周膜愈合,30颗患牙牙根部分牙周膜愈合和部分骨性愈合,3颗患牙不同程度牙根内外吸收,但无1例脱落。结论:早就诊且合理处理脱落牙、牙髓血管再生是牙再植术成功的关键,根尖诱导成形术可使替牙期牙根再度形成,牙骨质沉积于根端、封闭根尖孔,是替牙期脱位前牙治疗的重要手段,根管治疗可预防或减少脱位牙牙根的吸收。Objective To explore the effects and related influential factors of replantation after complete dislocation of anterior teeth/tooth on mixed dentition patients experiencing tooth transitions. Methods Analysis of 48 patients with 58 traumatic anterior teeth were made based on treatments recieved and clinical observations.After the reimplantation for the traumatic anterior teeth, patients returned for dental pulp test and periodontal examination. 2 weeks later, apexification was performed after the dental pulp test had indicated a negative result.Six months to 3 years after apexification, permanent canal filling treatment was made once the apical had been fully formed. Results three years after the replantation,5 teeth exist vitality with a dental pulp survival rate of 8.62%~X-ray examination indicates that out of the 53 teeth have had apexification and canal filling treatment：25 teeth＇s tooth roots have periodontal ligament fully recovered （bined together or have been healed）,30 teeth＇s teeth root have fully recovered iodontal ligaments and partial recover of the bone structures.3 of the teeth have indicated different degree of internal and external absorption of tooth root,but nooe came off. Conclusion Early diagnosis, reasonably treatment,and dental pulp vascular regeneration are the key to success of tooth reimplantation. Apexification is important since it enhances tooth rooth development thus rebuilt the tooth rooth and allows for the cementum deposit at the root apex. closing the apical cloure which is essential for treating traumatic anterior teeth when patients are under tooth transition period.In addition,tooth root canal operation can prevent or reduce traumatic teeth＇s tooth root absorption.

关 键 词：替牙期 完全脱位 牙再植术 

分 类 号：R783[医药卫生—口腔医学]