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Trends in dental caries prevalence in 12-year-old schoolchildren between 1976 and 2001 in Bauru, Brazil. 2005

R da Silva Bastos, and K P K Olympio, and V T Bijella, and M A R Buzalaf, and J R de Magalhães Bastos
Department of Paedodontics, Orthodontics and Collective Health, University of São Paulo, Bauru, SP, Brazil.

OBJECTIVE To evaluate the trends in dental caries prevalence in 12-year-old schoolchildren between 1976 and 2001 in Bauru, Brazil. Study design. An epidemiological survey was performed by trained, calibrated examiners by the same research group in 1976, 1984, 1990, 1995 and 2001, using the decayed, missing and filled teeth (DMFT) index. METHODS Urban elementary schools were chosen because they provide a fair representation of the city's population in terms of socio-economic status. The study included 261, 321, 253, 377 and 211 subjects from the same regions in 1976, 1984, 1990, 1995 and 2001, respectively. The prevalence of caries and the DMFT index were used. RESULTS A remarkable decrease was seen in the DMFT index at age 12 (84.53%) between 1976 and 2001. The DMFT indices at age 12 were 9.89, 7.01, 3.97, 4.13 and 1.53 in 1976, 1984, 1990, 1995 and 2001, respectively. The percentage of schoolchildren presenting with sound permanent teeth (DMFT = 0) increased from 0.40 to 45.50% between 1976 and 2001. Over the same period, the percentage of schoolchildren with six or more decayed teeth decreased from 86.99% to 5.21%. CONCLUSIONS The phenomenon of dental caries polarization is already perceptible in Bauru, Brazil. The increase in the number of schoolchildren with sound permanent teeth (DMFT = 0) suggests that the dental health policy in Bauru has had a positive effect in children's dental health, and should therefore be considered for other cities.

UI MeSH Term Description Entries
D008297 Male Males
D001938 Brazil A country located on the eastern coast of South America, located between Colombia and Peru, that borders the Atlantic Ocean. It is bordered on the north by Venezuela, Guyana, Suriname, and French Guiana, on the south by Uruguay, and on the west by Argentina. The capital is Brasilia.
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003731 Dental Caries Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. Caries, Dental,Carious Lesions,Dental Cavities,Dental Cavity,Dental Decay,Dental White Spots,Carious Dentin,Decay, Dental,Dental White Spot,White Spot, Dental,White Spots, Dental,Carious Dentins,Carious Lesion,Cavities, Dental,Cavity, Dental,Dentin, Carious,Dentins, Carious,Lesion, Carious,Lesions, Carious,Spot, Dental White,Spots, Dental White
D005260 Female Females
D006291 Health Policy Decisions, usually developed by government policymakers, for determining present and future objectives pertaining to the health care system. Health Care Policies,Health Policies,Healthcare Policy,National Health Policy,Care Policies, Health,Health Care Policy,Health Policy, National,Healthcare Policies,National Health Policies,Policies, Health,Policies, Health Care,Policies, Healthcare,Policy, Health,Policy, Health Care,Policy, Healthcare
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012959 Socioeconomic Factors Social and economic factors that characterize the individual or group within the social structure. Economic and Social Factors,Social Inequalities,Social Inequality,Social and Economic Factors,Socioeconomic Characteristics,Factors, Socioeconomic,High-Income Population,Land Tenure,Standard of Living,Characteristic, Socioeconomic,Factor, Socioeconomic,High Income Population,High-Income Populations,Inequality, Social,Living Standard,Living Standards,Population, High-Income,Socioeconomic Characteristic,Socioeconomic Factor,Tenure, Land
D014505 Urban Population The inhabitants of a city or town, including metropolitan areas and suburban areas. Urban Residence,Urban Spatial Distribution,Distribution, Urban Spatial,Distributions, Urban Spatial,Population, Urban,Populations, Urban,Residence, Urban,Urban Populations,Urban Residences,Urban Spatial Distributions

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