锥形束CT辅助正畸牵引上颌埋伏阻生前牙的临床观察  

Clinical observation of cone beam CT-assisted orthodontic traction of impacted maxillary anterior teeth

作　　者：吴欣帆 梁志超[1] 刘付玲 赖玲芝 WU XIN-fan;LIANG Zhi-chao;LIU Fu-ling;LAI Ling-zhi(Department of Stomatology,Maoming People’s Hospital,Maoming 525000,China)

机构地区：[1]茂名市人民医院口腔科,广东茂名525000

出　　处：《广东医科大学学报》2023年第6期653-655,共3页Journal of Guangdong Medical University

基　　金：茂名市科技计划项目(2022173)。

摘　　要：目的观察锥形束CT(CBCT)在上颌埋伏阻生前牙诊疗中的应用。方法28例上颌埋伏阻生前牙(患牙30颗)患者接受曲面断层片和CBCT成像检查,比较CBCT对上颌埋伏阻生前牙的定位情况。结果上颌埋伏阻生牙共30颗,其中28颗行正畸牵引治疗(1颗牵引失败,正畸术成功率96.4%),2颗因位置倒置而拔除。CBCT显示牙弓内位置位于唇侧、牙根轻度弯曲及根尖孔无闭合的诊断率高于曲面断层片,而牙弓内位置位于牙弓内的诊断率低于曲面断层片(P<0.05)。结论CBCT可精确显示埋伏阻生前牙的定位,利于指导正畸手术。Objective To observe the clinical application of cone beam computed tomography(CBCT)in impacted maxillary anterior teeth(IMATs).Methods Twenty-eight patients(30 teeth)with IMATs underwent curved surface tomography and CBCT.The positioning of IMATs was compared between them.Results Of 30 IMATs,28 received orthodontic traction,with treatment failure in 1 and success rate of 96.4%,and 2 were extracted due to inverted position.Compared with curved surface tomography,diagnostic rate of IMATs in the labial dental arch,mild root curvature and open apices was higher,while that of IMATs in the dental arch was lower using CBCT(P<0.05).Conclusion CBCT can accurately display the position of IMATs and guide the orthodontic procedure.

关 键 词：锥形束CT 阻生牙 正畸术 

分 类 号：R783[医药卫生—口腔医学]