THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS

Classification of occlusion is the first step in diagnosing the relationship between the upper and lower jaw's teeth. Based on Angle's classification, occlusion is divided into three categories: class I, class II, and class III. The aim of this study was to determine the prevalence of occl...

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Main Authors: A Jafari, A Kowsari, J Mahmoodian, A Zrehgar
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2008-10-01
Series:Acta Medica Iranica
Subjects:
Online Access:https://acta.tums.ac.ir/index.php/acta/article/view/3512
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author A Jafari
A Kowsari
J Mahmoodian
A Zrehgar
author_facet A Jafari
A Kowsari
J Mahmoodian
A Zrehgar
author_sort A Jafari
collection DOAJ
description Classification of occlusion is the first step in diagnosing the relationship between the upper and lower jaw's teeth. Based on Angle's classification, occlusion is divided into three categories: class I, class II, and class III. The aim of this study was to determine the prevalence of occlusion categories, based on Angle's classification, in adolescents with permanent dentition in Tehran. This is an epidemiological cross sectional, randomized and descriptive study. Based on minimum rate of prevalence belonging to class III, number of cases was calculated and 1524 students, equal boys and girls, were studied. The prevalence of each classification in boys, girls and in total was determined. Among all cases, 79% were in class I occlusion; about 14.5% were in class II and 6.5% in class III. From Angle's 1899 study of prevalence of occlusion type until now, many studies have been done with different results. It seems that prevalence of occlusion type strongly depends on genetic factors and area of the study.
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spelling doaj.art-6022b3e9d83e4e989e2c54a27de7b3f12022-12-21T23:47:15ZengTehran University of Medical SciencesActa Medica Iranica0044-60251735-96942008-10-01465THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARSA Jafari0A Kowsari1J Mahmoodian2A Zrehgar3Department of Pediatric Dentistry, Faculty of Dentistry, Tehran University of Medical Science, TehraDepartment of Pediatric Dentistry, Faculty of Dentistry, Tehran University of Medical Science, TehraDepartment of Pediatric Dentistry, Faculty of Dentistry, Tehran University of Medical Science, TehraDepartment of Pediatric Dentistry, Faculty of Dentistry, Tehran University of Medical Science, TehraClassification of occlusion is the first step in diagnosing the relationship between the upper and lower jaw's teeth. Based on Angle's classification, occlusion is divided into three categories: class I, class II, and class III. The aim of this study was to determine the prevalence of occlusion categories, based on Angle's classification, in adolescents with permanent dentition in Tehran. This is an epidemiological cross sectional, randomized and descriptive study. Based on minimum rate of prevalence belonging to class III, number of cases was calculated and 1524 students, equal boys and girls, were studied. The prevalence of each classification in boys, girls and in total was determined. Among all cases, 79% were in class I occlusion; about 14.5% were in class II and 6.5% in class III. From Angle's 1899 study of prevalence of occlusion type until now, many studies have been done with different results. It seems that prevalence of occlusion type strongly depends on genetic factors and area of the study.https://acta.tums.ac.ir/index.php/acta/article/view/3512malocclusionpermanent dentitionocclusion
spellingShingle A Jafari
A Kowsari
J Mahmoodian
A Zrehgar
THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
Acta Medica Iranica
malocclusion
permanent dentition
occlusion
title THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
title_full THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
title_fullStr THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
title_full_unstemmed THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
title_short THE PREVALENCE OF OCCLUSION CLASSIFICATIONS OF PERMANENT DENTITION IN TEHRAN'S STUDENTS AGED 12 To 13 YEARS
title_sort prevalence of occlusion classifications of permanent dentition in tehran s students aged 12 to 13 years
topic malocclusion
permanent dentition
occlusion
url https://acta.tums.ac.ir/index.php/acta/article/view/3512
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