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Type:	Artigo de Periódico
Title:	Association between molar incisor hypomineralization in schoolchildren and both prenatal and postnatal factors: a population-based study
Authors:	Luciana Fonseca Pádua Gonçalves Tourino Patrícia Corrêa-Faria Raquel Conceição Ferreira Cristiane Baccin Bendo Neves Patricia Maria Zarzar Miriam Pimenta Vale
Abstract:	Background: Although studies throughout the world have investigated potential factors involved in the occurrence of molar incisor hypomineralization (MIH), the findings are varied and inconclusive. Objective: The aim of the present study was to evaluate the prevalence of MIH and identify associated prenatal, perinatal and postnatal factors among Brazilian schoolchildren aged 8 and 9 years. Methods: A cross-sectional study was conducted with a randomly selected population-based sample of 1181 schoolchildren. Information on demographic and socioeconomic characteristics as well as prenatal, perinatal and postnatal aspects was obtained through questionnaires. The clinical examination included the investigation of MIH based on the criteria of the European Academy of Paediatric Dentistry. Dental caries in the permanent dentition and developmental defects of enamel (DDE) on the primary second molars were also recorded. Data analysis involved descriptive statistics, bivariate tests and Poisson regression with robust variance. Results: The prevalence of MIH was 20.4%. MIH was more frequent among children with dental caries in the permanent dentition (PR: 2.67; 95% CI: 1.98–3.61), those with DDE on the primary second molars (PR: 2.54; 95% CI: 1.87–3.45) and those who experienced asthma/bronchitis in the first four years of life (PR: 1.93; 95% CI: 1.45–2.56). Conclusions: The prevalence of MIH was high and was associated with dental caries, the presence of DDE on primary second molars and the experience of asthma/bronchitis in early life. These findings could be useful in the identification of children in need of shorter recall intervals to prevent the consequences of MIH, such as enamel breakdown dental caries.
Subject:	Molar hypomineralization Prenatal diagnosis Child Prevalence Cross-sectional studies
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	FAO - DEPARTAMENTO DE ODONTOLOGIA SOCIAL E PREVENTIVA FAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.1371/journal.pone.0156332
URI:	http://hdl.handle.net/1843/68157
Issue Date:	Jun-2016
metadata.dc.url.externa:	https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0156332
metadata.dc.relation.ispartof:	PLOS ONE
Appears in Collections:	Artigo de Periódico

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