垂直位埋伏阻生上颌中切牙正畸牵引治疗牙根发育的研究  

Study of the vertically impacted maxillary incisors’root development during orthodontic traction

作　　者：陈国锋[1] 王笑辰 王亮[2] 王林[2] 王玉华[2] 赵春洋[2] CHEN Guofeng;WANG Xiaochen;WANG Liang;WANG Lin;WANG Yuhua;ZHAO Chunyang(Department of Stomatology,Yixing People’s Hospital,Yixing 214200,China)

机构地区：[1]宜兴市人民医院口腔科,江苏宜兴214200 [2]南京医科大学口腔疾病研究江苏省重点实验室,南京医科大学附属口腔医院正畸科,江苏南京210029

出　　处：《口腔医学》2020年第4期330-333,共4页Stomatology

基　　金：国家自然科学基金(81830031);江苏省科教强卫口腔正畸学(ZDXKA2016026);江苏省高校优势学科建设工程项目(2018-87)。

摘　　要：目的探讨正畸治疗对垂直位埋伏阻生上颌中切牙牙根发育的影响。方法选择单侧垂直位埋伏阻生上颌中切牙患者24例,以对侧同名牙作对照。在治疗前后拍摄锥形束CT。利用Dolphin11.0软件测量埋伏阻生上颌中切牙及对侧同名牙治疗前、后牙根长度。结果埋伏阻生上颌中切牙治疗结束后牙根长度(9.79±1.57)mm显著大于治疗前(7.50±1.29)mm(P<0.001),埋伏牙的牙根长在治疗前和治疗结束后均显著短于对侧同名牙(P<0.001)。结论正畸牵引治疗能够促进垂直位埋伏阻生上颌中切牙牙根的生长发育,但埋伏阻生牙根长仍达不到正常牙水平。Objective To discuss the effect of orthodontic treatment on the root development of vertically impacted maxillary incisors.Methods Twenty-four patients with unilaterally vertically impacted maxillary central incisors were selected.The contralateral tooth with the same name was used as the control.Cone-beam CT(CBCT)was taken before and after treatment.Dolphin 11.0 was used to measure the root length before and after the treatment.Results The root lengths of impacted teeth after the treatment((9.79±1.57)mm)were significantly larger than those before treatment((7.50±1.29)mm)(P<0.001).The root lengths of the impacted teeth were significantly smaller than those of the control teeth before and after treatment(P<0.001).Conclusion Orthodontic traction can promote the further root development of the vertically impacted maxillary incisors,but the root length still cannot reach the normal level after treatment.

关 键 词：埋伏阻生 上颌中切牙 牙根 正畸牵引 

分 类 号：R783.5[医药卫生—口腔医学]