Quantitative analysis of incisor root resorption before and after camouflaged orthodontic treatment of adult skeletal class Ⅲ malocclusion using cone beam CT

• Published in: Kou qiang ji bing fang zhi = Journal of prevention and treatment for stomatological diseases Vol. 31; no. 1; pp. 34 - 39
• Main Authors: WANG Linna, Zhang Yuze, GE Xiaolei, LIU Yang, LI Jie, CHANG Weiwei, MA Wensheng
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases 01.01.2023
• Subjects: camouflaged treatment; cone beam ct; materialise’s interactive medical image control system; reverse engineering; reverse engineering software geomagic; root resorption; root volume; skeletal class ⅲ malocclusion; three-dimensional reconstruction
• ISSN: 2096-1456
• DOI: 10.12016/j.issn.2096-1456.2023.01.007

Objective To explore the changes in root volume and root resorption in incisor arteries from adult patients with skeletal class Ⅲ malocclusion before and after camouflaged orthodontic treatment and to provide a reference for the clinic. Methods Thirty permanent dentition adult patients with skeletal class Ⅲ malocclusion were included from the Orthodontic Department. CBCT data of each patient at pretreatment and posttreatment were acquired, and 3D digital root models were reconstructed. The whole and segmented root volumes (cervical part, bodily part and apical part) of the right incisors were calculated. Results The root volumes (whole, cervical part, bodily part and apical part) posttreatment were smaller than those pretreatment (P<0.001). Maxillary central incisors and lateral incisors showed similar resorption in the cervical root and bodily root and more changes in the apical root, but there was no significant difference (P>0.05). Mandibular central incisors and lateral incisors showed more root resorptio