Orthodontic treatment in patients with severe crowding in maxillary anterior teeth through various extraction patterns

Lim, Yoen-Ah; Cho, Ah-Ra; Kang, Byung-Min

doi:2021.59.4.213

J Korean Dent Assoc > Volume 59(4); 2021 > Article

CASE REPORT

The Journal of The Korean Dental Association 2021;59(4):213-224.
DOI: https://doi.org/10.22974/jkda.2021.59.4.002 Published online March 31, 2021.

심한 상악 전치부 크라우딩을 가진 환자에서 다양한 형태의 발치를 동반한 교정치료

임연아¹

, 조아라²

, 강병민²

^¹원광대학교 치의학대학원
^²원광대학교 치과대학 치과교정학교실

Orthodontic treatment in patients with severe crowding in maxillary anterior teeth through various extraction patterns

Yoen-Ah Lim¹

, Ah-Ra Cho²

, Byung-Min Kang²

¹College of Dentistry, Graduate school of Wonkwang University
²Department of Orthodontics, School of Dentistry, Wonkwang University

Correspondence: Byung-Min Kang, Tel: +82-63-859-2962, Fax: +82-303-3440-2962,
Email: kbm5618@nate.com

Received: 15 October 2020 • Revised: 12 November 2020 • Accepted: 20 November 2020

Abstract

A palatally displaced maxillary lateral incisor is related to the lack of space in the maxillary arch, and extraction orthodontic treatment is required in many cases. This case report describes two adolescent patients with a palatally displaced maxillary lateral incisor treated with two different extraction patterns. In case 1, an 18-year-old female patient whose left mandibular first molar was planned to be extracted was treated by extraction of the first molars from the left and the first pre-molars from the right. In Case 2, a 16-year-old male patient with a gingival recession of the mandibular incisor was treated by the extraction of four incisors from both arches. A good functional occlusion was established in both cases as a result of treatment. In the treatment of palatally displaced maxillary lateral incisors, asymmetric extraction or removal of the incisors can be a good treatment option if the indication is selected properly considering the prognosis of the teeth, the condition of the prosthesis, and mucogingival conditions

Key Words: palatally displaced maxillary lateral incisor; extraction orthodontic treatment