Evidence map›Paper›PMID 42056638›Full record

ArticleEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry2026

Prenatal and birth-related risk factors for hypomineralised second primary molars: a prospective cohort study.

K Yupanqui, D F Rojas-Gualdrón, P L Silva, A L de Farias, Manuel Restrepo, P H C Rondó, D G Bussaneli, Lourdes Santos-Pinto

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Article in European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

K YupanquiDepartment of Morphology and Pediatric Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil.
D F Rojas-GualdrónSchool of Medicine, CES University, Medellín, Colombia.
P L SilvaNutrition Department, School of Public Health, University of São Paulo, São Paulo, Brazil.
A L de FariasSchool of Dentistry, CES University, Medellín, Colombia.
Manuel RestrepoSchool of Dentistry, CES University, Medellín, Colombia.
P H C RondóNutrition Department, School of Public Health, University of São Paulo, São Paulo, Brazil.
D G BussaneliDepartment of Morphology and Pediatric Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil.
Lourdes Santos-PintoDepartment of Morphology and Pediatric Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, Brazil. lourdes.santos-pinto@unesp.br.

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) Finance Code 001Fundação de Amparo à Pesquisa do Estado de São Paulo grant 2015/03333-6
6 · The paper itself

Abstract

purposeHypomineralised second primary molar (HSPM) is a developmental enamel defect whose aetiology remains incompletely understood. This study aimed to identify prenatal and birth-related risk factors associated with HSPM in children from a prospective cohort.

methodsThis study was nested within the Araraquara Cohort. Of the 1,089 children considered potentially eligible for the dental assessment, 303 underwent clinical examination (27.8%). These children were followed from pregnancy through the eruption of the second primary molars. HSPM was diagnosed by a calibrated examiner using the MIH/HSPM Index. Prenatal and birth-related data were obtained from the cohort database. Associations between exposures and HSPM were analysed using generalised linear models to estimate crude and adjusted risk ratios (RR).

resultsThe median age of the children was 3.6 years (IQR: 3.1-4.2), and 53.5% were male. The incidence of HSPM was 9.6%. The most frequent findings were white-creamy demarcated opacities and lesions affecting less than one-third of the tooth surface. In the adjusted multivariable analysis, HSPM was associated with alcohol consumption during the third trimester of pregnancy (RR = 2.56; 95% CI = 1.05-6.27), maternal illness during the first trimester of pregnancy (RR = 2.01; 95% CI = 1.02-3.99), and higher household income in the study sample (RR = 1.07; 95% CI = 1.01-1.13).

conclusionThese findings highlight pregnancy, particularly in the first and third trimesters, as critical periods for the development of HSPM, reinforcing the relevance of prenatal care and early identification of children at risk of developing this defect.

Indexed as

ChildrenDental enamel hypomineralisationDevelopmental defects of enamelMolar hypomineralisationPrimary tooth

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PMID42056638

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