Caries increment in primary teeth from 3 to 6 years of age: a longitudinal study in Swedish children
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To longitudinally follow and analyse caries prevalence and development in primary dentition in Swedish preschool children from 3 to 6 years of age.
A longitudinal clinical study.
Three hundred 3-year-old children in the Public Dental Service were consecutively included. The children underwent annual clinical examinations at 3, 4, 5 and 6 years of age, performed by four calibrated dentists in clinical settings. Initial (d1–2) and manifest (d3–5) lesions were registered at surface and tooth level. Radiographs were taken when indicated and possible.
Chi-squared test was used for group comparisons. Friedman’s test, Wilcoxon non-parametric test and logistic regression analyses explored caries development over the years.
The parents of 271 children agreed to their children participating in the study (total dropout rate at 6 years, 10.3 %). At baseline, 27.3 % of the children had carious lesions (d1–5 mean 0.98, SD ± 2.44), and only 50.6 % of the children were totally caries-free at 6 years (d1–5 mean 1.88, SD ± 2.81). Initial carious lesions made up the greater share at all ages. The greater part of the caries increment occurred between 3 and 4 years of age (p < 0.001). Having initial and/or manifest carious lesions at 3 years of age was a significant explanatory factor for new lesions at 6 years of age (OR 2.29; 95 % CI 1.58–3.31).
Children with an early caries experience had a high risk of further disease progression. Oral health promotion and prevention programmes should target small children and their carers.
KeywordsPreschool child Dental caries Primary dentition
This study was financially supported by the Skaraborg County Council and the Skaraborg Research and Development Council, which are both gratefully acknowledged.
- Bjerrum Nielsen H, Rudberg M. Gender socialization in a developmental perspective. Psychological gender and modernity. Oslo: Scandinavian University Press; 1994. p. 11–35.Google Scholar
- CDC. EpiInfo version 6.04d. Atlanta, Georgia, USA: Centers for Disease Control and Prevention; 2001. http://www.cdc.gov/epiinfo [2012-04-30].
- Ismail AI. Prevention of early childhood caries. Community Dent Oral Epidemiol. 1998;26(Supplement1):49–61.Google Scholar
- SPSS. Advanced Statistics 19.0 ed. Chicago: SPSS Inc.; 2011.Google Scholar
- Sundqvist R, Larsson E, Nyberg A et al. A first report on a study of caries in 3-year-olds. Caries in 3-year-olds in Skaraborg and the impact of risk indicators (in Swedish). Tandläkartidningen. 2006;98:68–72.Google Scholar
- The National Board of Health and Welfare. Dental health among children and adolescents 1985–2005 (in Swedish). Stockholm: Socialstyrelsen; 2006.Google Scholar
- The National Board of Health and Welfare. Caries among children and adolescents: a report for the year 2008 (in Swedish). Stockholm: Socialstyrelsen; 2010.Google Scholar
- Vaughan V, Litt I. Child and adolescent development: clinical implications. Philadelphia: WB Saunders company; 1990.Google Scholar
- WHO Oral Health Country/Area Profile Programme. http://www.mah.se/capp/ (2013-04-30) (2013). Accessed 30 Apr 2013.