Caries experience in the permanent dentition among first- and second-grade schoolchildren in southeastern Estonia

Acta Odontol Scand. 2013 May-Jul;71(3-4):410-5. doi: 10.3109/00016357.2012.690529. Epub 2012 May 21.


Objective: This study aims to assess the caries experience among first- and second-grade children in the elementary schools of southeastern Estonia.

Materials and methods: A representative sample of 485 children was studied. The mean age of children in the first grade was 7.8 years (SD = 0.35) and in the second grade 8.8 years (0.38). The clinical examinations using ICDAS criteria were completed by four calibrated examiners. The inter- and intra-examiner consistency of the examiners was high (surface and tooth-based kappa >0.9).

Results: The mean caries experience of dentinal caries lesions was 0.8 (D 4-6 MFT) and 1.6 (D 4-6 MFS) among the first graders and 1.1 (D 4-6 MFT) and 1.6 (D 4-6 MFS) among the second graders. The mean caries enamel lesions among the first graders was 1.6 (D1-3T) and 2.2 (D1-3S) and among the second graders 2.1 and 3.0, respectively. The most affected surfaces were the occlusal surfaces of the lower first molars. The prevalence of sealants was very low-only 2.4% of the first molars were sealed among the first graders and 3.9% among the second graders. There were no statistically significant differences in caries experience or in the provision of restorative treatment between the schools.

Conclusions: Caries experience is high in southeastern Estonia. Preventive programs are urgently needed.

Trial registration: NCT01062633.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Child
  • Dental Caries / epidemiology*
  • Dentition, Permanent*
  • Estonia / epidemiology
  • Female
  • Humans
  • Male

Associated data