Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Southeast University(Medical Science Edition)》 2017-04
Add to Favorite Get Latest Update

Evaluation of anterior root resorption in orthodontic treatment using cone-beam computed tomography: a prospective study

ZHOU Dan;LI Yang-fei;LIANG Xiao-wei;QIN Han;Department of Stomatology,the First People's Hospital of Lianyungang;  
Objective: To investigate the incidence and severity of root resorption in adult orthodontic treatment.Methods: Roots of 390 anterior teeth in 65 patients with class Ⅰ malocclusion were assessed using cone-beam computed tomography( CBCT) at pre-treatment,6-month treatment and post-treatment. Results: Root shortening 1 mm was found more frequently in lateral incisors after 6 months' treatment. At endpoint,root shortening 1 mm was also seen more frequently in lateral incisors,and followed by upper central incisors. Root shortening 4 mm were only found in upper central incisors and upper lateral incisors. 92. 3% of patients had at least one root with shortening 1 mm,and 6. 15% had one or more teeth with shortening 4 mm. All teeth showed more obviously root shortening after 6-month treatment than before,except for the lower lateral incisors. Statistically significant difference was only found in the upper lateral incisor. Conclusions: Most patients showed different degree of root resorption during orthodontic treatment,and CBCT is an effective and accurate method for the evaluation of root resorption.
【Fund】: 国家自然科学基金资助项目(81500893)
【CateGory Index】: R783.5
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved