RESEARCH REPORT

The relation between family socioeconomic trajectories from childhood to adolescence and dental caries and associated oral behaviours

Marco Aurélio Peres¹, Karen Glazer Peres¹, Aluísio Jardim Dornellas de Barros² and Cesar Gomes Victora²

¹ Department of Public Health, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
² Department of Social Medicine, Universidade Federal de Pelotas, Pelotas, RS, Brazil

Correspondence to:
Correspondence to:
Dr M A Peres
Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Saúde Pública, Campus Universitário – Trindade, Florianópolis – SC, Brazil; mperes{at}ccs.ufsc.br

Objectives: To investigate the influence of family socioeconomic trajectories from childhood to adolescence on dental caries and associated behaviours.

Design: Population-based birth cohort.

Setting: Representative sample of the population of subjects born in 1982 in Pelotas, Brazil.

Participants: Adolescents (n = 888) aged 15 years old were dentally examined and interviewed.

Main outcome measures: Dental caries index (DMFT), care index (F/DMFT), tooth brushing, flossing and pattern of dental services use.

Main results: Adolescents who were always poor showed, in general, a worse pattern of dental caries, whereas adolescents who never were poor had a better pattern of dental caries. Adolescents who had moved from poverty in childhood to non-poverty in adolescence and those who had moved from non-poverty in childhood to poverty in adolescence had similar dental pattern to those who were always poor except for the pattern of dental services use, which was higher in the first group. In all groups girls had fewer carious teeth, better oral hygiene habits and higher dental services use than boys.

Conclusion: Poverty in at least one stage of the lifespan has a harmful effect on dental caries, oral behaviours and dental services use. Belonging to upwardly mobile families between childhood and adolescence only contributed to improved dental care.

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