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Numbers of Natural Teeth, Diet, and Nutritional Status in US Adults

¹ Health Disparities Research Program, Center for Clinical Research, National Institute of Dental and Craniofacial Research, National Institutes of Health, NIH/DHHS, 45 Center Drive, Room 4AS-43F, Bethesda, MD 20892-6401, USA; and
² Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, UK

Correspondence: ^* corresponding author, Ruth.Nowjack-Raymer{at}nih.gov

Evidence that dental status affects diet is equivocal. The hypothesis of this study was that diet was affected by dental status. The objective was to assess the relationship between numbers of teeth and diet and nutritional status in US adult civilians without prostheses. We examined 6985 NHANES (1988–1994) participants. Data included socio-economics, demographics, dental status, and diet and nutritional status. Dietary data were obtained from food frequency questionnaires and 24-hour dietary recall. Serum levels of beta carotene, folate, and vitamin C were measured with isocratic high-performance liquid chromatography. The population was classified by numbers of teeth. Covariance and Satterthwaite F-adjusted statistical comparisons were made between tooth groupings and the fully dentate population. Multilinear regression models adjusted for covariates. People with fewer than 28 teeth had significantly lower intakes of carrots, tossed salads, and dietary fiber than did fully dentate people, and lower serum levels for beta carotene, folate, and vitamin C. Dental status significantly affects diet and nutrition.

Key Words: teeth • diet • nutrition • vitamins • health disparities

Journal of Dental Research, Vol. 86, No. 12, 1171-1175 (2007)
DOI: 10.1177/154405910708601206


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