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Oral Health & Preventive Dentistry

Edited by Jean-Francois Roulet, Poul Erik Petersen, Anton Sculean

Official journal of the World Congress of Minimally Invasive Dentistry

ISSN (print) 1602-1622 • ISSN (online) 1757-9996


Fall 2006
Volume 4 , Issue 3

Pages: 187-192
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Trends in Dental Caries Rates in 12- and 13-Year-Old Schoolchildren from Florianopolis (Brazil) between 1971 and 2005

Souza, Marina Leite / Bastos, Joao Luiz Dornelles / Peres, Marco Aurelio

Purpose: To estimate dental caries prevalence and severity among all 12- and 13-year-old schoolchildren enrolled in a public school in 2005 and to establish comparisons with the results of studies previously conducted in the same school in 1971, 1997 and 2002. Methods: A cross-sectional study involving 190 children was carried out. A single calibrated examiner collected the clinical data according to the World Health Organization (1997) criteria. Results: The response rate was 90.0%. Between 1971 and 2005, the observed reduction in caries prevalence was 58.2%, whereas the mean DMFT Index declined from 9.2 to 0.8, which corresponds to a reduction of 91.3%. The significant caries index (SiC) reduced from 3.4 (CI 95% 3.03.8) in 2002 to 2.2 (Cl 95% 1.82.5) in 2005. Conclusion: This study indicates an actual decline in dental caries prevalence and severity among the schoolchildren during the studied period, even though different diagnostic criteria were used.

Keywords: caries, DMFT Index, oral health, significant caries index (SiC)

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