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Published in: BMC Pediatrics 1/2021

01-12-2021 | Caries | Research

Vitamin D, pregnancy and caries in children in the INMA-Asturias birth cohort

Authors: Claudia Suárez-Calleja, Jaime Aza-Morera, Tania Iglesias-Cabo, Adonina Tardón

Published in: BMC Pediatrics | Issue 1/2021

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Abstract

Background

Vitamin D is traditionally associated with the metabolism of calcium and phosphorus, a process essential for the mineralization of hard tissue such as bone or tooth. Deficiency of this vitamin is a problem worldwide, however. Given the possibly significant role of Vitamin D in odontogenesis in children, the objective of our study was to determine the influence of vitamin D levels in the blood on dental anomalies in children between 6 and 10 years of age, by means of 25-hydroxy vitamin D tests performed during pregnancy and the first years of life.

Methods

The data analyzed were sourced from data belonging to the INMA-Asturias birth cohort, a prospective cohort study initiated in 2004 as part of the INMA Project. The 25-hydroxy vitamin D (25(OH)D) test was performed with samples from 188 children in the INMA-Asturias birth cohort with a dental examination performed between 6 and 10 years of age. The samples were taken at three stages: in the mother at 12 weeks of gestation, and subsequently in the child at 4 and 8 years of age. Diet, nutritional and oro-dental hygiene habits were also analyzed by means of questionnaires.

Results

The results indicate a significant association between caries and correct or incorrect brushing technique. With incorrect brushing technique, the prevalence of caries was 48.89%, but this dropped to 22.38% with correct brushing technique. An association was also found between tooth decay and frequency of sugar intake. The prevalence of caries was 24.54% with occasional sugar intake, but this rose to 56% with regular sugar intake. On the other hand, levels < 20 ng/ml in both mother and child at 8 years of age would also be risk factors (ORgest = 2.51(1.01–6.36) and OR8years = 3.45(1.14–11.01)) for the presence of caries in children. The risk of caries practically tripled where 25(OH) D values were < 20 ng/ml.

Conclusions

Although incorrect brushing technique and regular sugar consumption was found to be the main cause of caries in the children, the low concentrations of vitamin D in the blood of the pregnant mothers may have magnified this correlation, indicating that the monitoring of vitamin D levels during pregnancy should be included in antenatal programmes. It is particularly striking that 50% of the children were deficient in vitamin D at the age of 4, and that dental floss was practically absent from regular cleaning routines.
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Metadata
Title
Vitamin D, pregnancy and caries in children in the INMA-Asturias birth cohort
Authors
Claudia Suárez-Calleja
Jaime Aza-Morera
Tania Iglesias-Cabo
Adonina Tardón
Publication date
01-12-2021
Publisher
BioMed Central
Keyword
Caries
Published in
BMC Pediatrics / Issue 1/2021
Electronic ISSN: 1471-2431
DOI
https://doi.org/10.1186/s12887-021-02857-z

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