Epidemiologic Study of Molar-incisor Hypomineralization in Schoolchildren in North-eastern Brazil.

Autor:	de Lima Mde D; Department of Pathology and Dentistry Clinic, School of Dentistry, Federal University of Piauí, Teresina, Piauí, Brazil. mdmlima@gmail.com., Andrade MJ; Private practice, Teresina, Piauí, Brazil., Dantas-Neta NB; Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Andrade NS; Private practice, Teresina, Piauí, Brazil., Teixeira RJ; Department of Pathology and Dentistry Clinic, School of Dentistry, Federal University of Piauí, Teresina, Piauí, Brazil., de Moura MS; Department of Pathology and Dentistry Clinic, School of Dentistry, Federal University of Piauí, Teresina, Piauí, Brazil., de Deus Moura Lde F; Department of Pathology and Dentistry Clinic, School of Dentistry, Federal University of Piauí, Teresina, Piauí, Brazil.
Jazyk:	angličtina
Zdroj:	Pediatric dentistry [Pediatr Dent] 2015 Nov-Dec; Vol. 37 (7), pp. 513-9.
Abstrakt:	Purpose: To determine the prevalence of molar-incisor hypomineralization (MIH) in children and possible factors associated with this disorder. Methods: This was a cross-sectional observational study of 594 11- to 14-year-olds from Teresina, Piauí, Brazil. The diagnosis of MIH was made based on criteria set by the European Academy of Pediatric Dentistry. To investigate possible associated factors, mothers completed a questionnaire. A descriptive analysis of the data, chi-square, Mann-Whitney, and Fisher tests and Poisson regression (PR) were performed. Results: The prevalence of MIH was 18.4 percent (95 percent confidence interval [CI] equals 15.20 to 21.50). The maxillary molars were the teeth most affected by MIH (36.1 percent). MIH patients showed a higher number of mean DMF-T (PR equals 2.18; 95 percent CI equals 1.46 to 2.85) than those not affected by the condition. There was an association between MIH and preterm birth (PR equals 1.76; 95 percent CI equals 1.22 to 2.12) and between MIH and respiratory distress at birth (PR equals 1.83; 95 percent CI equals 1.25 to 2.18). Conclusions: The prevalence of MIH in schoolchildren was 18.4 percent. Those with MIH had a greater mean DMF-T than those without MIH. Preterm birth and respiratory distress were associated with MIH.
Databáze:	MEDLINE
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