Improved super-elastic Ti–Ni alloy wire intrusion arch for skeletal class Ⅱ malocclusion combined with deep overbite:A case report  

作　　者：Ching-Yu Yang Chih-Chieh Lin I-Jia Wang Yuan-Hou Chen Jian-Hong Yu 

机构地区：[1]Department of Orthodontics,China Medical University Hospital,Taichung 404327,Taiwan [2]Department of Orthodontics,China Medical University and Medical Center,Taichung 40447,Taiwan

出　　处：《World Journal of Clinical Cases》2023年第17期4142-4151,共10页世界临床病例杂志

摘　　要：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.

关 键 词：Dentistry ORTHODONTICS Skeletal class II Intrusion arch Case report 

分 类 号：R783.5[医药卫生—口腔医学]