Dental caries in the primary dentition of german children with cleft lip, alveolus, and palate.

Objective : The purpose of this cross-sectional study was to assess the prevalence of dental caries in children with cleft lip, alveolus, and/or cleft palate living in central Germany between 1996 and 2010. Participants : A total of 295 children 1 to 6 years of age from three birth cohorts (BC) with clefts from central Germany were included in the study. They were compared with 548 1- to 6-year-old cleft-free children from the same region.

Effective teaching of tooth-brushing to preschool children.

Purpose: The purpose of the present study was to compare artificial tooth-brushing models (TBM) and individual modeling regarding their efficacy in teaching the correct brushing movements to younger preschool children.

Methods: A total of 141 30- to 50-month-old preschool children who had not been previously instructed on tooth-brushing were enrolled in the present trial. Four different model types/groups were compared: (1) giant TBM; (2) animal TBM puppet; (3) child him/herself in front of the mirror; (4) another person with the child in the mirror.