Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study

Background and aim: Craniofacial and airway structures are visible in lateral cephalometric radiography. Witt's appraisal and ANB angle are cephalometric analysis indicators, which play essential roles in diagnosing class III malocclusion. In the current study, the correlations among Witt'...

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Main Authors: Mehrnaz Alirezaei, Aliakbar Naghavialhosseini, Mina Pakkhesal, Mehrnoosh Alirezaei, Nasser Behnampour
Format: Article
Language:English
Published: International Journal of Scientific Research in Dental and Medical Sciences (IJSRDMS) 2020-09-01
Series:International Journal of Scientific Research in Dental and Medical Sciences
Subjects:
Online Access:http://www.ijsrdms.com/article_113433_6de002b8e5309f35d0069768eaa384f8.pdf
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author Mehrnaz Alirezaei
Aliakbar Naghavialhosseini
Mina Pakkhesal
Mehrnoosh Alirezaei
Nasser Behnampour
author_facet Mehrnaz Alirezaei
Aliakbar Naghavialhosseini
Mina Pakkhesal
Mehrnoosh Alirezaei
Nasser Behnampour
author_sort Mehrnaz Alirezaei
collection DOAJ
description Background and aim: Craniofacial and airway structures are visible in lateral cephalometric radiography. Witt's appraisal and ANB angle are cephalometric analysis indicators, which play essential roles in diagnosing class III malocclusion. In the current study, the correlations among Witt's and ANB cephalometric indices and the upper pharyngeal airway width has been investigated in individuals with class III malocclusion. Materials and methods: This cross-sectional study was performed on 110 lateral cephalometric radiographs of 11-14-year-old patients during 2017-2020. The upper pharyngeal airway width was determined by p index (the shortest distance between the soft palate and the posterior pharyngeal wall) and the t index (the shortest distance between the tongue base and the posterior pharyngeal wall) through lateral cephalometric radiography. The data were designated by central tendency indicators and measures of dispersion. The Shapiro-Wilk test evaluated data normality. Also, the Spearman correlation coefficient was used to determine the correlation rate. Results: Investigating the correlations among indicators showed a direct but dramatically low relationship in ANB and p values and Witt's and p values. However, these relationships were not statistically significant. There was also an inverse linear relationship between ANB and t values and Witt's and t values. Nevertheless, the results showed the mean values of p, t, ANB, and Witt's indices were higher in females than males, yet, the differences in p and ANB values were not statistically significant. Conclusion: Results showed the correlation coefficients among the upper pharyngeal airway width, and ANB and Witt's analyses were not significant. These results can reinforce the probability of class III malocclusion inheritance.
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spelling doaj.art-68ac0dba030440aea5f6d2120a57e8db2022-12-21T23:53:01ZengInternational Journal of Scientific Research in Dental and Medical Sciences (IJSRDMS)International Journal of Scientific Research in Dental and Medical Sciences2676-54972676-53732020-09-0123677110.30485/ijsrdms.2020.239255.1072113433Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional StudyMehrnaz Alirezaei0Aliakbar Naghavialhosseini1Mina Pakkhesal2Mehrnoosh Alirezaei3Nasser Behnampour4Dental Research Center, School of Dentistry, Golestan University of Medical Sciences, Gorgan, IranDepartment of Orthodontics, Faculty of Dentistry, Golestan University of Medical Sciences, Gorgan, IranDepartment of Community Oral Health, School of Dentistry, Golestan University of Medical Sciences, Gorgan, IranDepartment of Pediatric Dentistry, Dentistry Clinical Research Development Center, Birjand University of Medical Sciences, Birjand, IranDepartment of Biostatistics and Epidemiology, School of Health, Golestan University of Medical Sciences, Gorgan, IranBackground and aim: Craniofacial and airway structures are visible in lateral cephalometric radiography. Witt's appraisal and ANB angle are cephalometric analysis indicators, which play essential roles in diagnosing class III malocclusion. In the current study, the correlations among Witt's and ANB cephalometric indices and the upper pharyngeal airway width has been investigated in individuals with class III malocclusion. Materials and methods: This cross-sectional study was performed on 110 lateral cephalometric radiographs of 11-14-year-old patients during 2017-2020. The upper pharyngeal airway width was determined by p index (the shortest distance between the soft palate and the posterior pharyngeal wall) and the t index (the shortest distance between the tongue base and the posterior pharyngeal wall) through lateral cephalometric radiography. The data were designated by central tendency indicators and measures of dispersion. The Shapiro-Wilk test evaluated data normality. Also, the Spearman correlation coefficient was used to determine the correlation rate. Results: Investigating the correlations among indicators showed a direct but dramatically low relationship in ANB and p values and Witt's and p values. However, these relationships were not statistically significant. There was also an inverse linear relationship between ANB and t values and Witt's and t values. Nevertheless, the results showed the mean values of p, t, ANB, and Witt's indices were higher in females than males, yet, the differences in p and ANB values were not statistically significant. Conclusion: Results showed the correlation coefficients among the upper pharyngeal airway width, and ANB and Witt's analyses were not significant. These results can reinforce the probability of class III malocclusion inheritance.http://www.ijsrdms.com/article_113433_6de002b8e5309f35d0069768eaa384f8.pdfangle class iiicephalometrymalocclusionpharynx
spellingShingle Mehrnaz Alirezaei
Aliakbar Naghavialhosseini
Mina Pakkhesal
Mehrnoosh Alirezaei
Nasser Behnampour
Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
International Journal of Scientific Research in Dental and Medical Sciences
angle class iii
cephalometry
malocclusion
pharynx
title Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
title_full Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
title_fullStr Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
title_full_unstemmed Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
title_short Investigating the Correlations among Witt's and ANB Cephalometric Indices and the Upper Pharyngeal Airway Width in Individuals with Class III Malocclusion: A Cross-Sectional Study
title_sort investigating the correlations among witt s and anb cephalometric indices and the upper pharyngeal airway width in individuals with class iii malocclusion a cross sectional study
topic angle class iii
cephalometry
malocclusion
pharynx
url http://www.ijsrdms.com/article_113433_6de002b8e5309f35d0069768eaa384f8.pdf
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