Treatment of adult skeletal Class Ⅱ malocclusion with invisible orthodontic appliances combined with miniscrews:A case report and literature review
10.13481/j.1671-587X.20250125
- VernacularTitle:隐形矫治器联合微种植钉治疗成年人骨性Ⅱ类错(牙合)1例报告及文献复习
- Author:
Haoyan ZHANG
1
;
Xinyi LI
;
Xinning SHI
;
Jiangyang LI
;
Yumiao WU
;
Xianchun ZHU
Author Information
1. 吉林大学口腔医院正畸科,吉林 长春 130021
- Keywords:
Trayless invisible orthodontics;
Skeletal Class Ⅱ malocclusion;
Premolars;
Coaster effect;
Miniscrews
- From:
Journal of Jilin University(Medicine Edition)
2025;51(1):208-214
- CountryChina
- Language:Chinese
-
Abstract:
Application of invisible orthodontic appliances in the treatment of adult skeletal malocclusions,especially in the cases requiring tooth extraction,has always been one of the challenges in invisible orthodontic technology.Our department received a 30-year-old female patient in March 2019;the patient presented with complaints of"crooked teeth and protruding mouth,"seeking orthodontic treatment to improve her facial profile.The patient had bilateral distal molar relationship,proclined maxillary and mandibular anterior teeth,and deep overjet;radiographic examination revealed an ANB angle of 6.2°,indicating a skeletal Class Ⅱ malocclusion.By extracting four first premolars and using four miniscrews,after 20 months of treatment,the extraction spaces were fully closed,the dental arch was aligned,and the occlusal relationship was favorable;the anterior teeth were retracted,the mandible showed a reverse rotation,and the soft tissue profile was significantly improved.Application of invisible orthodontic appliances in conjunction with miniscrews anchorage can achieve good three-dimensional control of tooth movement in adult extraction cases,providing a reference for clinical practitioners treating such patients.
