摘要
弯根牙是指由于各种原因造成的牙冠与牙根(或部分牙根)形成一定弯曲角度的牙齿。文章总结了临床弯根牙的病因、形成机制、临床错表现、治疗原则、治疗时机选择、治疗的生物学及生物力学考虑;介绍了临床正畸治疗方法与原则,并且着重对牙根正在形成的前牙弯根牙的临床治疗体会及临床治疗对前牙发育的优势进行了阐释,认为早期弯根牙治疗能促进牙根形成、避免弯根严重化及弯曲牙根暴露。同时,文章还强调并提出前牙弯根阻生牙需早期矫治的临床证据,探讨了前牙弯根牙早期治疗的可能性,为弯根牙的临床早期正畸治疗提供了新思路。
Tooth dilaceration is considered as a dental deformity characterized by pronounced angulations of the longitudinal tooth axis. This article reviewed the etiology,mechanism,clinical features,treatment principles,treatment timing and treatments based on biological and biomechanical thoughts of tooth dilaceration. This article especially illustrated early orthodontic intervention for impacted and dilacerated maxillary central incisors. The early orthodontic intervention showed that the successful tooth alignment could be achieved,the forms of dilacerated root were improved,and the chance of root exposure in oral cavity when angular teeth were aligned was reduced. The author suggested the early orthodontic intervention of impacted teeth with dilacerated root was better for root morphologic development and could be a clinical choice for the tooth dilaceration treatment.
作者
李小兵
LI Xiao-bing(Department of Pedodontics and Orthodontics,West China School of Stomatology,Sichuan University, Chengdu 610041,China)
出处
《中国实用口腔科杂志》
CAS
2016年第9期523-527,共5页
Chinese Journal of Practical Stomatology
关键词
弯根牙
弯根阻生
牙根形态发育
早期正畸综合治疗
root dilaceration
tooth impaction
root morphological development
early orthodontic intervention
