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Prevalence of congenitally missing permanent teeth in Iran

BACKGROUND: Hypodontia or congenitally missing teeth is among dental anomalies with different prevalence in each region. The aim of this study was to evaluate the prevalence of congenitally missing permanent teeth in Iranian population. MATERIALS AND METHODS: A descriptive, retrospective and cross-s...

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Autores principales: Sheikhi, Mahnaz, Sadeghi, Mohammad Ali, Ghorbanizadeh, Sajad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3692187/
https://www.ncbi.nlm.nih.gov/pubmed/23814548
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author Sheikhi, Mahnaz
Sadeghi, Mohammad Ali
Ghorbanizadeh, Sajad
author_facet Sheikhi, Mahnaz
Sadeghi, Mohammad Ali
Ghorbanizadeh, Sajad
author_sort Sheikhi, Mahnaz
collection PubMed
description BACKGROUND: Hypodontia or congenitally missing teeth is among dental anomalies with different prevalence in each region. The aim of this study was to evaluate the prevalence of congenitally missing permanent teeth in Iranian population. MATERIALS AND METHODS: A descriptive, retrospective and cross-sectional study was done. Panoramic radiographs of 2422 Iranian patients (1539 girls and 883 boys), 7-25 years old, were collected. The radiographs were studied for evidence of congenitally missing teeth. Data were analyzed using Paired t-test, Mann-Whitney test, Fisher exact test and Chi-square test (α = 0.05). RESULTS: Prevalence of congenitally missing teeth was totally 45.7% and 34.8% for third molars. The most frequent congenitally missing teeth was mandibular second premolars (23.34%) followed by maxillary second premolars (22.02%). Upper jaw showed significantly higher number of congenitally missing teeth (P value < 0.001). According to Chi-square test, congenital missing teeth was found approximately 10.9% in both females and males and there were no statistically significant difference between sexes (P = 0.19). CONCLUSION: The prevalence of congenitally missing teeth (CMT) in Iranian permanent dentition was 10.9%. The most common congenitally missing teeth were mandibular second premolar fallowed by maxillary second premolars.
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spelling pubmed-36921872013-06-28 Prevalence of congenitally missing permanent teeth in Iran Sheikhi, Mahnaz Sadeghi, Mohammad Ali Ghorbanizadeh, Sajad Dent Res J (Isfahan) Original Article BACKGROUND: Hypodontia or congenitally missing teeth is among dental anomalies with different prevalence in each region. The aim of this study was to evaluate the prevalence of congenitally missing permanent teeth in Iranian population. MATERIALS AND METHODS: A descriptive, retrospective and cross-sectional study was done. Panoramic radiographs of 2422 Iranian patients (1539 girls and 883 boys), 7-25 years old, were collected. The radiographs were studied for evidence of congenitally missing teeth. Data were analyzed using Paired t-test, Mann-Whitney test, Fisher exact test and Chi-square test (α = 0.05). RESULTS: Prevalence of congenitally missing teeth was totally 45.7% and 34.8% for third molars. The most frequent congenitally missing teeth was mandibular second premolars (23.34%) followed by maxillary second premolars (22.02%). Upper jaw showed significantly higher number of congenitally missing teeth (P value < 0.001). According to Chi-square test, congenital missing teeth was found approximately 10.9% in both females and males and there were no statistically significant difference between sexes (P = 0.19). CONCLUSION: The prevalence of congenitally missing teeth (CMT) in Iranian permanent dentition was 10.9%. The most common congenitally missing teeth were mandibular second premolar fallowed by maxillary second premolars. Medknow Publications & Media Pvt Ltd 2012-12 /pmc/articles/PMC3692187/ /pubmed/23814548 Text en Copyright: © Dental Research Journal http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Sheikhi, Mahnaz
Sadeghi, Mohammad Ali
Ghorbanizadeh, Sajad
Prevalence of congenitally missing permanent teeth in Iran
title Prevalence of congenitally missing permanent teeth in Iran
title_full Prevalence of congenitally missing permanent teeth in Iran
title_fullStr Prevalence of congenitally missing permanent teeth in Iran
title_full_unstemmed Prevalence of congenitally missing permanent teeth in Iran
title_short Prevalence of congenitally missing permanent teeth in Iran
title_sort prevalence of congenitally missing permanent teeth in iran
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3692187/
https://www.ncbi.nlm.nih.gov/pubmed/23814548
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