Yang CY, Lin CC, Wang IJ, Chen YH, Yu JH. Improved super-elastic Ti–Ni alloy wire intrusion arch for skeletal class II malocclusion combined with deep overbite: A case report. World J Clin Cases 2023; 11(17): 4142-4151 [PMID: 37388780 DOI: 10.12998/wjcc.v11.i17.4142]
Corresponding Author of This Article
Jian-Hong Yu, PhD, Professor, Department of Orthodontics, China Medical University and Medical Center, No. 2 Yude Road, North District, Taichung 40447, Taiwan. kj.kj@msa.hinet.net
Research Domain of This Article
Dentistry, Oral Surgery & Medicine
Article-Type of This Article
Case Report
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Ching-Yu Yang, Department of Orthodontics, China Medical University Hospital, Taichung 404327, Taiwan
Chih-Chieh Lin, I-Jia Wang, Yuan-Hou Chen, Jian-Hong Yu, Department of Orthodontics, China Medical University and Medical Center, Taichung 40447, Taiwan
Author contributions: Yu JH was responsible for conceptualization and supervision; Yang CY was responsible for writing the original draft, reviewing, and editing; Wang IJ, Lin CC, Chen YH contributed to investigation and data curation; All authors have read and approve the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient.
Conflict-of-interest statement: The authors declare that they have no conflict of interest to disclose.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Jian-Hong Yu, PhD, Professor, Department of Orthodontics, China Medical University and Medical Center, No. 2 Yude Road, North District, Taichung 40447, Taiwan. kj.kj@msa.hinet.net
Received: March 22, 2023 Peer-review started: March 22, 2023 First decision: April 11, 2023 Revised: April 23, 2023 Accepted: May 6, 2023 Article in press: May 6, 2023 Published online: June 16, 2023 Processing time: 81 Days and 20.5 Hours
Abstract
BACKGROUND
Treatment for deep overbite cases can be difficult. This case report presents some techniques with improved super-elastic Ti–Ni alloy wire (ISW) for deep overbite correction.
CASE SUMMARY
A 21-year-old woman had a chief complaint of flaring maxillary teeth. Orthodontic evaluation revealed a skeletal class II malocclusion and a convex profile appearance. A deep overbite with palatal impingement and large overjet were also noted. Bilateral maxillary first premolars were extracted, and spaces were closed using a closed-coil spring and elastic chain. The deep overbite was corrected by applying the ISW curve and ISW intrusion arch. Intermaxillary elastics was used to adjust the intermaxillary relationship. Active treatment took approximately 3 years, and the appearance and dentition alignment noticeably improved.
CONCLUSION
The use of the ISW technique in a case of skeletal class II malocclusion with deep overbite achieved a desirable result, and the patient was satisfied with the treatment outcome.
Core Tip: Treatment for deep overbite cases is always challenging. In this skeletal Class II malocclusion with deep overbite case, we applied improved super-elastic Ti-Ni alloy wire intrusion arch to achieve ideal overjet, and the improvement in appearance and dentition alignment was noticeable.
