2011 Volume 21 Issue 1 Pages 49-55
Dental caries in early childhood is a significant public health problem, among which nursing caries is known to be caused by inappropriate nursing habits. The aim of the present study was to investigate lifestyle factors related to nursing caries. We examined 2,506 Japanese children aged 18 months, as a part of public health examinations conducted by the Municipal Public Health Center in 2008. Questionnaires were also administered to their guardians, which focused on nutritional and dental health conditions. Statistical analyses were then performed to determine significant nutritional and dental health factors associated with nursing caries. There were 117 children (4.7% of total) identified with dental caries, of whom 18 (0.7% of total cohort, 15.3% of children with dental caries) were designated as the nursing caries group. Statistical analyses revealed that breastfeeding was the most important factor as compared to children without nursing caries (P = 0.0002; odds ratio, 6.373). Our results showed that inappropriate breastfeeding is one of the most important factors related to both onset and exacerbation of nursing caries, and conclude that parents should be informed of appropriate breastfeeding practices by dentists for their prevention.
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