TREATMENT OF CLASS Ⅲ MALOCCLUSION WITH HORSESHOE APPLIANCE : CASE REPORT

Hong, Han-Young; Park, Jae-Hong; Choi, Yeong Chul; Kim, Kwang-Chul

Journal of the Korean Academy of Pediatric Dentistry 2008;35(2):376-381.
Published online May 31, 2008.

TREATMENT OF CLASS Ⅲ MALOCCLUSION WITH HORSESHOE APPLIANCE : CASE REPORT

Han-Young Hong¹, Jae-Hong Park², Yeong Chul Choi², Kwang-Chul Kim²

¹Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University
²Institute of Oral Biology, School of Dentistry, Kyung Hee University

Horseshoe Appliance를 이용한 Ⅲ급 부정교합의 치험례

홍한영¹, 박재홍², 최영철², 김광철²

¹경희대학교 치과대학 소아치과학교실
²경희대학교 치과대학 구강생물학연구소

Correspondence: Jae-Hong Park, Tel: 02-958-9371, Email: pedopjh@khu.ac.kr

Abstract

In mixed dentition there exists many empty spaces in the arch due to eruption of permanent teeth and exfoliation of primary teeth. The empty spaces makes it difficult to apply fixed orthodontic appliances. Horseshoe Appliance can be used effectively at this stage, holding the whole dentition in one piece. It covers every surface of erupted teeth and prevents extrusion and rotation of single tooth. By using intermaxillary elastic force, remodeling of the alveolar bone is opposite in each arch. In patients who were treated with horseshoe appliance, forward growth of maxilla, labioversion of maxillary incisors and linguoversion of mandibular incisors were obtained. Minimum downward and clockwise rotation of mandible was shown, so increasing anterior facial height was minimized.

Key Words: Class Ⅲ Malocclusion, Anterior Crossbite, Horseshoe Appliance