(1) Background: The aim of this study was to assess oral health in children following dental treatment under general anaesthesia and to obtain information about oral health measures in both the children and their parents. (2) Methods: Children were scheduled for regular dental re-examination one to six years after dental treatment under general anaesthesia. Scores for mixed dmft/DMFT, the plaque control record (PCR), and the gingival bleeding index (GBI) were determined. Information about children's/parents' oral hygiene habits and frequency of dental visits was obtained. Scores for mixed dmft/DMFT as assessed before dental treatment under general anaesthesia/at re-examination were compared (Wilcoxon test). (3) Results: From the 134 parents initially contacted, 35 attended regular dental control visits (response rate: 26%) with their children (median age 6 years). Of the 35 children (20 female, 15 male), 18 (51.4%) were healthy and 17 (48.6%) had a pre-existing condition. Mixed dmft/DMFT scores determined at the recall visit differed significantly from the earlier visit (p = 0.006). Children had 1.74 ± 3.64 teeth newly affected by caries. Four children (11.4%) needed dental treatment under general anaesthesia again. Oral hygiene was mediocre (median PCR: 32%). The GBI was high (median: 14%). Children with a high PCR also had a high GBI. (4) Conclusions: Children who had received dental treatment under general anaesthesia still had a high caries risk. Further prophylaxis programs are necessary to prevent caries and further use of general anaesthesia.
Keywords: dental treatment under general anaesthesia; early childhood caries; oral health; questionnaire.