title: Factors associated with number of erupted primary teeth in Brazilian children: a cross-sectional study.
abstract: OBJECTIVE
  The purpose of this study was to determine whether nutritional status, gender, weight, and height affected the number of erupted primary teeth in six- to 30 month-old children.
  
  
  METHODS
  A cross-sectional study was carried out involving an oral clinical examination, and weight and height measurements of 232 children, as well as a questionnaire filled out by their parents. Statistical analysis involved descriptive data, Spearman's correlation coefficient, Kruskall-Wallis test, and multiple linear regression in two sets, using the enter method to control the confounding factor (age) and the stepwise method for gender, weight, and height ( P<.05). The calculation of effect size proposed by Cohen was used to test the clinical significance of the findings.
  
  
  RESULTS
  The number of erupted teeth was not significantly influenced by nutritional status ( P<.58; Kruskal-Wallis test) or gender ( P=.95; Mann-Whitney test). Body weight had a statistically significant association with the number of erupted primary teeth ( P<.001), and height showed a positive correlation with this variable, both independently of the child's age.
  
  
  CONCLUSIONS
  The number of erupted primary teeth was affected by weight in children of the same age.
authors.affiliation: Pediatric dentist in private practice; Department of Dentistry, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, in Diamantina, Minas Gerais, Brazil. patriciafaria.faria09@gmail.com.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Corrêa-Faria
authors.affiliation: Dentist in private practice, in Diamantina, Minas Gerais, Brazil.
authors.forename: Letícia
authors.initials: L
authors.lastname: Leite-Faria
authors.affiliation: Dentist in private practice, in Diamantina, Minas Gerais, Brazil.
authors.forename: Aline Neves
authors.initials: AN
authors.lastname: Viana
authors.affiliation: Department of Dentistry, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, in Diamantina, Minas Gerais, Brazil.
authors.forename: Leandro Silva
authors.initials: LS
authors.lastname: Marques
authors.affiliation: Department of Dentistry, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, in Diamantina, Minas Gerais, Brazil.
authors.forename: Fernanda Oliveira
authors.initials: FO
authors.lastname: Ferreira
authors.affiliation: Department of Dentistry, School of Dentistry, Federal University of Vales do Jequitinhonha e Mucuri, in Diamantina, Minas Gerais, Brazil.
authors.forename: Maria Letícia
authors.initials: ML
authors.lastname: Ramos-Jorge
mesh_terms: D001827:Body Height; D001835:Body Weight; D001938:Brazil; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009752:Nutritional Status; D012737:Sex Factors; D011795:Surveys and Questionnaires; D014078:Tooth Eruption; D014094:Tooth, Deciduous