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Epidemiologia e Serviços de Saúde

On-line version ISSN 2237-9622


ELY, Helenita Corrêa; ABEGG, Claides; ROSA, Arisson Rocha da  and  PATTUSSI, Marcos Pascoal. Dental caries reduction among adolescents: temporal and spatial distribution in 36 Southern Brazilian municipalities, 2003 and 2011. Epidemiol. Serv. Saúde [online]. 2014, vol.23, n.3, pp.421-434. ISSN 2237-9622.


to evaluate dental caries in adolescents and its spatial and temporal distribution in southern Brazilian municipalities.


an ecological study was conducted with 4,205 (2003) and 3,531 (2011) students aged 12 and 15-19 in 36 cities in Rio Grande do Sul where macro-regional indicators of the average number of decayed, missing and filled teeth (DMFT), untreated caries prevalence and the percentage of caries-free teeth (DMFT = 0) were georeferenced.


in 2003 and2011, respectively, mean DMFT was 3.63 and 1.66 (12 years) and 7.43 and3.43 (15-19 years). Caries-free adolescents increased from 18.6% to 42.1% (12 years) and from 7.5% to 22.2% (15-19 years); untreated caries decreased from 50.9% to 27.2% (12 years) and from 56.1% to 32.4% (15-19). Results varied between municipalities and macro-regions.


dental caries reduced after 8 years, with uneven distribution between macro-regions and municipalities.

Keywords : Oral Health; Adolescent; Dental Caries; Spatio-Temporal Analysis.

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