Prevalence and predisponent factors of molar-incisor hypomineralization in primary dentition

Authors

  • Ana de Lourdes Sá de Lira State University of Piauí https://orcid.org/0000-0002-9299-1416
  • Francisca Janiele de Sousa State University of Piauí
  • Francisco Dário Carvalho de Sousa State University of Piauí
  • Maria Karen Vasconcelos Fontenele State University of Piauí
  • Carlos Kelvin Campos Ribeiro State University of Piauí
  • Luiz Eduardo Gomes Ferreira State University of Piauí

DOI:

https://doi.org/10.20396/bjos.v20i00.8661202

Keywords:

Tooth demineralization, Dental enamel, Amelogenesis

Abstract

Aim: To evaluate the prevalence and predisposing factors for hypomineralization of second molars in children in primary dentition. Methods: A questionnaire was applied to parents to analyze predisposing factors and to assist in the diagnosis of hypomineralization in children between 2 and 6 years old, followed by an intraoral examination based on indices of non-fluorotic enamel defects in the primary dentition, according to the “Modified Index DDE” to determine demarcated opacity and HSPM presence / severity index to assess hypomineralization. Children from public and private schools were dived into two groups: if they presented HSPM-Group 1 (G1) and if they did not have HSPM-Control group (CG). Results: The most frequent predisposing factors associated with the child were Illness in the first year of life (X2= 6.49; p=0.01) and antibiotic use in the first year of life (X2= 41.82; p= 0.01). The factors associated with the mother were hypertension (X2= 9.36; p=0.01), infections during pregnancy (X2=14.80; p=0.01) and alcohol consumption during pregnancy (X2=97.33; p=0.01). There was a prevalence of 3.9% of HSPM in 14 children, with statistical difference regarding gender (X2 = 4.57; p <0.05), with boys presenting a higher frequency. In G1 hypomineralization was of the type with demarcated opacity, with more prevalent characteristics the yellowish spot, with moderate post-eruptive fracture and acceptable atypical restorations. All lesions were located in the labial region with 1/3 of extension. Conclusion: The prevalence of HSPM in children between 2 and 6 years old was 3.9%, with a predominance in males, with tooth 65 being the most affected. There was an association between HSPM and infection in the first year of life, as well as the use of antibiotics and sensitivity in the teeth affected by the lesion. There was an association between HSPM and hypertension, infection and mothers' alcohol use during pregnancy.

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Author Biographies

Ana de Lourdes Sá de Lira, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

Francisca Janiele de Sousa, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

Francisco Dário Carvalho de Sousa, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

Maria Karen Vasconcelos Fontenele, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

Carlos Kelvin Campos Ribeiro, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

Luiz Eduardo Gomes Ferreira, State University of Piauí

State University of Piauí – UESPI, School of Dentistry, Department of Clinical Dentistry, Area of Integrated Clinic, Parnaíba, PI, Brazil.

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Published

2021-05-10

How to Cite

1.
Lira A de LS de, Sousa FJ de, Sousa FDC de, Fontenele MKV, Ribeiro CKC, Ferreira LEG. Prevalence and predisponent factors of molar-incisor hypomineralization in primary dentition. Braz. J. Oral Sci. [Internet]. 2021 May 10 [cited 2022 Oct. 1];20(00):e211202. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8661202

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