Clinical effect of a door shaped individualized dental archwire on the treatment of maxillary transposed canines

• Published in: Kou qiang ji bing fang zhi = Journal of prevention and treatment for stomatological diseases Vol. 31; no. 9; pp. 647 - 652
• Main Authors: HE Wucheng, HE Qin, LU Guangwei, LI Yinglan, WU Zelin, YAN Shuhe
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases 01-09-2023
• Subjects: crown height; ectopic; impaction; individualized dental archwire; maxilla; orthodontic treatment; panoramic radiography; pocket depth; transposed canine
• ISSN: 2096-1456
• DOI: 10.12016/j.issn.2096⁃1456.2023.09.006

Objective To discuss the effectiveness and mechanism for movement of maxillary buccally transposed canines by using a door-shaped individualized dental archwire mechanic and to provide a reference for clinicians. Methods Eight patients with unilateral maxillary transposed canines were enrolled. All patients were treated with door-shaped individualized archwires. Before treatment (T1) and after the crowns of the transposed canines were moved to the right buccal positions in the dental arch during the treatment (T2), orthopantomograms were taken both at T1 and T2 to compare the linear changes (distance changes of the crown and root apex) and angular changes to study the mechanisms of tooth movement. The probing depth and buccal crown height were measured using a periodontal probe to compare periodontal changes before treatment (T1) and after treatment (T3) between the transposed canines and contralateral canines. Results All eight transposed canines were successfully brought back to their normal dental arch pos