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Correction of Class III malocclusion with alternate rapid maxillary expansions and constrictions using a hybrid hyrax?mandibular miniplate combination and simultaneous orthodontic treatment: A case report

Korean Journal of Orthodontics 2019년 49권 5호 p.338 ~ 346
 ( Martinez-Smit Rosana ) - CES University Department of Orthodontics

 ( Aristizabal Juan Fernando ) - Universidad del Valle Department of Orthodontics
 ( Filho Valfrido Antonio Pereira ) - UNESP Univ Estadual Paulista Araraquara School of Dentistry Department of Diagnosis and Surgery

Abstract


In this report, we describe the successful use of alternate rapid maxillary expansions and constrictions with a hybrid hyrax?mandibular miniplate combination and simultaneous orthodontic treatment for the management of severe Class III malocclusion due to maxillary hypoplasia in an 11-year-old girl. The devices were removed after 20 months of treatment, and the family was instructed about a careful control and retention program that should be followed in accordance with the patient’s growth. The final result included the correction of Class III malocclusion with adequate function and excellent facial esthetics, which restored the patient’s self-esteem and provided personal motivation. The outcomes showed good stability after 24 months of retention. The decrease in the duration of active treatment is the most important finding from the present case. Considering that facial esthetics in adolescence is a determining factor for the development of a personality and interpersonal relationships, we recommend the use of this protocol for growing patients, who will exhibit not only an improved physical appearance but also a better quality of life.

키워드

Orthopedics; Bone anchorage; Maxillary protraction; Class III maloc-clusion
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