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KJO Korean Journal of Orthodontics

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pISSN 2234-7518
eISSN 2005-372X
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Korean J Orthod   

First Published Date August 2, 2022

Copyright © The Korean Association of Orthodontists.

Clinical application of maxillary tissue bone-borne expander and biocreative reverse curve system in the orthodontic retreatment of severe anterior open bite with transverse discrepancy: A case report

Jin-Young Choia*, Bai Jinb*, Seong-Hun Kimc

aClinical Assistant Professor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
bPhD student, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
cProfessor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.

Correspondence to:Seong-Hun Kim D.M.D., M.S.D., Ph.D.
Department of Orthodontics, Graduate School, Kyung Hee University, #1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Republic of Korea
Telephone: 82-2-958-9392
E-mail address: bravortho@gmail.com
* The authors contributed equally as co-first authors.

Abstract

An anterior open bite and transverse discrepancy are often accompanied by hyperdivergent skeletal patterns. In addition, degenerative joint disorders and vertical maxillary excess contribute to an unfavorable convex facial profile with a retruded chin. Correction of this complex three-dimensional problem with orthodontic treatment alone is considered challenging owing to the anatomical limitations. Moreover, a history of orthodontic treatment with premolar extraction makes retreatment difficult. This case report illustrates the application of a maxillary tissue bone-borne expander and biocreative reverse curve system in a 23-yearold female patient with a severe anterior open bite and transverse discrepancy who underwent orthodontic treatment with four premolar extractions. By setting the treatment target under precise diagnosis and using appropriate appliances, a satisfactory treatment result could be achieved without orthognathic surgery.

Keywords: miniplate, expansion, relapse, Class II

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Korean J Orthod   

First Published Date August 2, 2022

Copyright © The Korean Association of Orthodontists.

Clinical application of maxillary tissue bone-borne expander and biocreative reverse curve system in the orthodontic retreatment of severe anterior open bite with transverse discrepancy: A case report

Jin-Young Choia*, Bai Jinb*, Seong-Hun Kimc

aClinical Assistant Professor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
bPhD student, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
cProfessor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.

Correspondence to:Seong-Hun Kim D.M.D., M.S.D., Ph.D.
Department of Orthodontics, Graduate School, Kyung Hee University, #1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Republic of Korea
Telephone: 82-2-958-9392
E-mail address: bravortho@gmail.com
* The authors contributed equally as co-first authors.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An anterior open bite and transverse discrepancy are often accompanied by hyperdivergent skeletal patterns. In addition, degenerative joint disorders and vertical maxillary excess contribute to an unfavorable convex facial profile with a retruded chin. Correction of this complex three-dimensional problem with orthodontic treatment alone is considered challenging owing to the anatomical limitations. Moreover, a history of orthodontic treatment with premolar extraction makes retreatment difficult. This case report illustrates the application of a maxillary tissue bone-borne expander and biocreative reverse curve system in a 23-yearold female patient with a severe anterior open bite and transverse discrepancy who underwent orthodontic treatment with four premolar extractions. By setting the treatment target under precise diagnosis and using appropriate appliances, a satisfactory treatment result could be achieved without orthognathic surgery.

Keywords: miniplate, expansion, relapse, Class II