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Dental Caries and its Association With Sociodemographics, Erosion, and Diet in Schoolchildren from Southeast Brazil

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Purposes: The purposes of this study were to determine the prevalence of caries in a sample of Brazilian schoolchildren, test associations between caries, sociodemographics, and erosion, and investigate potential dietary factors common to both conditions. Methods: Brazilian schoolchildren (13-14 years old) completed a questionnaire to provide dietary information and underwent dental examination. Sociodemographic characteristics were collected using a questionnaire completed by parents/guardians. Caries was assessed using decayed, missing, filled teeth/surfaces (DMFT/DMFS) indices. Erosion was assessed using a previously validated index. Results: Of 458 schoolchildren, 78% had caries experience. A statistically significantly lower prevalence of caries was observed in children from a higher economic class and whose parents had higher educational levels. Thirty-five percent of children with caries also had erosion, while 32% with a DMFT of 0 had erosion (P=.72). The frequency of consumption of drinks and foods was not statistically significantly associated with caries. The intake of sugared carbonated drinks was statistically significantly associated with erosion (P=.01). The mothers' educational level was the only variable independently associated with caries experience (P=.04). Conclusions: Dental caries was associated with sociodemographics, but not with erosion. There were no dietary factors identified in common for caries and erosion.


Document Type: Research Article

Publication date: May 1, 2009

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  • Pediatric Dentistry is the official publication of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry and the College of Diplomates of the American Board of Pediatric Dentistry. It is published bi-monthly and is internationally recognized as the leading journal in the area of pediatric dentistry. The journal promotes the practice, education and research specifically related to the specialty of pediatric dentistry. This peer-reviewed journal features scientific articles, case reports and abstracts of current pediatric dental research.
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