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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 May 16, 2022

Copyright © The Korean Association of Orthodontists.

Assessment of pharyngeal airway in Korean adolescents according to skeletal pattern, sex, and cervical vertebral maturation: A cross-sectional CBCT study

Tassneem Elagiba; Hee-Moon Kyunga; Bui Quang Hunga; Mihee Honga

Department of Orthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea

Correspondence to:Mihee Hong,
Associate Professor, Department of Orthodontics, School of Dentistry, Kyungpook National University, 2175 Dalgubeol-daero, Jung-gu, Daegu, 41940, Republic of Korea. Tel: +82-(0)53-600-7374; Fax: +82-(0)53-421-4925
E-mail: mhhong1208@gmail.com

Abstract

Objective: To investigate airway volumes using cone-beam computed tomography (CBCT) by skeletal patterns, sex, and cervical vertebral maturation (CVM) stages in Korean adolescents. Methods: The sample consisted of pretreatment CBCT and cephalograms of 95 adolescents (aged 12–19) obtained out of 1611 patients examined for orthodontic treatment from 2018 to 2020 in Kyungpook National University Dental Hospital. The samples were classified into two sex groups; three skeletal pattern groups, four chronological age groups and four CVM stages. Nasopharyngeal volumes (NPV), oropharyngeal volumes (OPV), total airway volumes (TAV) and minimum cross-sectional area (MCA) measurements were taken from the CBCT. Multiple linear regression analyses to find out which one of the independent variables are good predictors for airway variables. Significant factors were analyzed by Twoway MANOVA then multiple comparisons were analyzed using a T-test, and Fisher least significant difference. Results: Age, sex, CVM, and SNB have significant influence on airway variable. Males and females showed similar patterns of change in chronological age groups 1-3; however, males had larger NPV, OPV, and MCA at CVM in group 4. According to CVM stages, males had larger OPV, TAV, and MCA at CVM stage 6 (p-value: 0.019; 0.021; 0.015, respectively) and no sex differences at CVM stages 3, 4, and 5. Conclusions: Skeletal patterns have an effect on airway volume. Sex differences were found in CVM 6.

Keywords: pharyngeal airway, cone-beam computed tomography, skeletal age, craniofacial pattern

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Korean J Orthod   

First Published Date May 16, 2022

Copyright © The Korean Association of Orthodontists.

Assessment of pharyngeal airway in Korean adolescents according to skeletal pattern, sex, and cervical vertebral maturation: A cross-sectional CBCT study

Tassneem Elagiba; Hee-Moon Kyunga; Bui Quang Hunga; Mihee Honga

Department of Orthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea

Correspondence to:Mihee Hong,
Associate Professor, Department of Orthodontics, School of Dentistry, Kyungpook National University, 2175 Dalgubeol-daero, Jung-gu, Daegu, 41940, Republic of Korea. Tel: +82-(0)53-600-7374; Fax: +82-(0)53-421-4925
E-mail: mhhong1208@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

Objective: To investigate airway volumes using cone-beam computed tomography (CBCT) by skeletal patterns, sex, and cervical vertebral maturation (CVM) stages in Korean adolescents. Methods: The sample consisted of pretreatment CBCT and cephalograms of 95 adolescents (aged 12–19) obtained out of 1611 patients examined for orthodontic treatment from 2018 to 2020 in Kyungpook National University Dental Hospital. The samples were classified into two sex groups; three skeletal pattern groups, four chronological age groups and four CVM stages. Nasopharyngeal volumes (NPV), oropharyngeal volumes (OPV), total airway volumes (TAV) and minimum cross-sectional area (MCA) measurements were taken from the CBCT. Multiple linear regression analyses to find out which one of the independent variables are good predictors for airway variables. Significant factors were analyzed by Twoway MANOVA then multiple comparisons were analyzed using a T-test, and Fisher least significant difference. Results: Age, sex, CVM, and SNB have significant influence on airway variable. Males and females showed similar patterns of change in chronological age groups 1-3; however, males had larger NPV, OPV, and MCA at CVM in group 4. According to CVM stages, males had larger OPV, TAV, and MCA at CVM stage 6 (p-value: 0.019; 0.021; 0.015, respectively) and no sex differences at CVM stages 3, 4, and 5. Conclusions: Skeletal patterns have an effect on airway volume. Sex differences were found in CVM 6.

Keywords: pharyngeal airway, cone-beam computed tomography, skeletal age, craniofacial pattern