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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 July 22, 2022

Copyright © The Korean Association of Orthodontists.

Three-dimensional evaluation of strategic uprighting of the mandibular molars using a biocreative reverse curve system: A cone-beam computed tomography study

Jae-Woo Kima*, Jin-Young Choib*, Min-Ji Kimc, Xu Bind, Seong-Hun Kimc

a,c,d PhD student, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
bClinical Assistant Professor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
eProfessor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
*The authors contributed equally as co-first author.

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

Abstract

Objectives: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Materials and Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment (T1) and at the end of the BRC system application (T2). The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results: The application of the BRC system from the first premolar to the second molar not only resulted in buccal and distal uprighting but also increased buccal tipping and distal tipping of the teeth. The teeth of the first premolar to the first molar were extruded, and the second molar was intruded. Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars on both sides can be achieved without unnecessary movement of the anterior teeth using a temporary skeletal anchorage device.

Keywords: Molar uprighting, Biocreative reverse curve, miniplate, CT

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Korean J Orthod   

First Published Date July 22, 2022

Copyright © The Korean Association of Orthodontists.

Three-dimensional evaluation of strategic uprighting of the mandibular molars using a biocreative reverse curve system: A cone-beam computed tomography study

Jae-Woo Kima*, Jin-Young Choib*, Min-Ji Kimc, Xu Bind, Seong-Hun Kimc

a,c,d PhD student, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
bClinical Assistant Professor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
eProfessor, Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea.
*The authors contributed equally as co-first author.

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

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

Objectives: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Materials and Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment (T1) and at the end of the BRC system application (T2). The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results: The application of the BRC system from the first premolar to the second molar not only resulted in buccal and distal uprighting but also increased buccal tipping and distal tipping of the teeth. The teeth of the first premolar to the first molar were extruded, and the second molar was intruded. Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars on both sides can be achieved without unnecessary movement of the anterior teeth using a temporary skeletal anchorage device.

Keywords: Molar uprighting, Biocreative reverse curve, miniplate, CT