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International Journal of Dentistry
Volume 2012 (2012), Article ID 810170, 6 pages
http://dx.doi.org/10.1155/2012/810170
Research Article

Dental Caries Prevalence and Tooth Loss in Chilean Adult Population: First National Dental Examination Survey

1Cariology Area, Department of Restoring Dentistry, Faculty of Dentistry, University of Chile, 8380-492 Santiago de Chile, Chile
2School of Public Health, Faculty of Medicine, University of Chile, 8380-453 Santiago de Chile, Chile
3Periodontal Biology Laboratory, Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Calle Sergio Livingstone pohlhammer 943, Independencia, 8380-492 Santiago de Chile, Chile
4Public Health Area, Faculty of Dentistry, University of Chile, 8380-492 Santiago de Chile, Chile
5Oral Pathology Area, Faculty of Dentistry, University of Chile, 8380-492 Santiago de Chile, Chile

Received 28 August 2012; Revised 16 November 2012; Accepted 21 November 2012

Academic Editor: Marilia Afonso Rabelo Buzalaf

Copyright © 2012 I. Urzua et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study was to assess the prevalence of dental caries, tooth loss, and risk factors among adult population of Chile. Furthermore, age, gender, and behavioural specific differences in caries prevalence and tooth loss were examined. A national stratified multistage probabilistic sample design in two-age cohorts was applied to the Chilean population. A sample of 1553 adults, comprising 1088 individuals aged 35–44 and 465 senior individuals aged 65–74, were examined. The DMFT was evaluated following WHO recommendations using diagnostic criteria of caries lesions into dentin. The data were analyzed by univariate and multivariate models using logistic regression analyses. Results showed a mean DMFT of 15.06 in the 35–44-year-old group and of 21.57 in the 65–74 group. Factors related to tooth loss in the 35–44 group through univariate logistic regression were depression (OR 1.9 CI 95% 1.26–2.85), education level <12 years (OR 2.24 CI 95% 1.31–3.73), personal income (OR 1.51 CI 95% 1.04–2.19), and familiar income (OR 2.05 CI 95% 1.34–3.13), and through multivariate logistic regression in the same age group were depression (OR 1.93 CI 95% 1.24–3.0), education level <12 years (OR 1.94 CI 95% 1.2–3.14), and familiar income (OR 1.71 CI 95% 1.09–2.68). Factors related to tooth loss in the 65–74-year-old group through univariate logistic regression were education level <12 years (OR 2.54 CI 95% 1.3–4.96) and personal income (OR 1.66 CI 95% 1.05–2.63), and for multivariate logistic regression in the same age group, it was education level <12 years (OR 2.51 CI 95% 1.21–5.18). In conclusion, adult population in Chile showed a high prevalence of dental caries and tooth loss, as age, education level, personal and familiar incomes, and depression are being the main risk factors.