Assessment of restoration quality of permanent teeth in children with different caries resistance degree

Abstract

Relevance. Caries prevalence and intensity in permanent teeth of children are increasing with age. It is common knowledge that secondary caries causes 57% of restoration replacements in children. Studying the risk of secondary caries onset in the child's permanent teeth is relevant.Purpose. To study the marginal fit of restorative material (composites and compomers) in per-manent teeth of children with different caries resistance degrees.Materials and methods. One-hundred-and-three children (167 teeth) aged 6 to 15 y.o. had clinical and labora-tory examinations and treatment. All children had dentine caries of permanent teeth (K02.1) treated. The carious cavities were filled with compomer and composite materi-al. We clinically assessed the restorative marginal integrity in each patient based on the intensity of the carious process by G.Ryge (1998) and laser fluorescence 1 and 2 years after the filling of cavities.Results. In children with average caries intensity and compomer restorations, the rate of resto-rations with secondary caries signs reached 72%, while the high caries intensity group demonstrated 32%. The group with average carious process intensity and composite restorations did not show any secondary caries signs; in the group with high carious process intensity, inadequate marginal integrity of restorations was in 41% of cases.Conclusion. Compomers are recommended for caries treatment in permanent teeth of children with high carious process intensity, while composites are for children with average carious process intensity. Laser fluorescence allows for the identification of diagnostically reli-able data detecting the loss of a significant amount of restorative material to the level of dentin-enamel junction.