Fan Y, Yu JH, Chen YH. Improved super-elastic Ti-Ni alloy wire for the angle class III patient with anterior open bite: A case report. World J Clin Cases 2025; 13(15): 101884 [DOI: 10.12998/wjcc.v13.i15.101884]
Corresponding Author of This Article
Jian-Hong Yu, PhD, Professor, School of Dentistry, China Medical University, No. 91 Xueshi Road, North District, Taichung 404, Taiwan. kenkoyu@mail.cmu.edu.tw
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/
World J Clin Cases. May 26, 2025; 13(15): 101884 Published online May 26, 2025. doi: 10.12998/wjcc.v13.i15.101884
Improved super-elastic Ti-Ni alloy wire for the angle class III patient with anterior open bite: A case report
Yu Fan, Jian-Hong Yu, Yuan-Hou Chen
Yu Fan, Yuan-Hou Chen, Department of Orthodontics, China Medical University Hospital, Taichung 40447, Taiwan
Jian-Hong Yu, School of Dentistry, China Medical University, Taichung 404, Taiwan
Co-first authors: Yu Fan and Yuan-Hou Chen.
Author contributions: Fan Y was responsible for treating patients and organizing data; Chen YH was the clinical supervisor; Fan Y and Chen YH contributed equally to this article, they are the co-first authors of this manuscript; Chen YH and Yu JH completed the treatment and organized the data; and all authors thoroughly reviewed and endorsed the final manuscript.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
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, School of Dentistry, China Medical University, No. 91 Xueshi Road, North District, Taichung 404, Taiwan. kenkoyu@mail.cmu.edu.tw
Received: September 30, 2024 Revised: December 31, 2024 Accepted: January 9, 2025 Published online: May 26, 2025 Processing time: 113 Days and 1.6 Hours
Abstract
BACKGROUND
Orthodontic treatment for open bite and crossbite cases is always challenging. In this paper, we demonstrate a skeletal class III patient with anterior open bite and crossbite whose problem was successfully corrected with improved super-elastic Ti-Ni alloy wire (ISW).
CASE SUMMARY
A 19 years old male came to our clinic with a chief complaint of anterior open bite and crossbite and not able to chew food well. Clinical examination revealed an angle class III malocclusion with anterior open bite, crossbite and spaced arch. Radiographic and clinical examination showed a skeletal class III pattern. We used ISW to level the upper and lower arch and to correct the anterior open bite and crossbite. Intermaxillary elastics were also used to achieve a better interdigitation. Finally, adequate overbite, overjet and a desirable occlusion were achieved. The active treatment time took 2 years and 2 months.
CONCLUSION
In a case of class III angular malocclusion with open bite and crossbite in the anterior teeth, ideal results were achieved using the ISW technique and the patient was satisfied with the outcome.
Core Tip: The orthodontic treatment for patients with skeletal class III is usually difficult, and the treatment usually requires combination with orthognathic surgery, which not only involves higher costs but also requires a significant amount of recovery time post-surgery. However, by using improved super-elastic Ti-Ni alloy wire, we successfully corrected the skeletal class III patient with anterior crossbite and open bite without surgical intervention. Patient is satisfied with the result of the treatment.
