T-shaped toothbrush for plaque removal and gingival health in children: a randomized controlled trial

Background To evaluate an experimental T-shaped toothbrush for plaque removal and gingival health when compared to a conventional toothbrush among children. Methods This single blind parallel randomized controlled trial was conducted on 8-10-year-old healthy schoolchildren with no history of recent antibiotic intake, proximal caries or more than 3 missing teeth per quadrant. A computer-generated randomization list allocated child to the 2 groups. Each child received detailed instructions for tooth brushing. Gingival health and plaque scores were recorded in school at baseline, 2 weeks, 1 month and 3 months in a portable dental chair by an examiner who was blind to the allocated toothbrush. A general feedback on the use of the T-shaped toothbrush was obtained at 3 months. Data was analyzed using two-way repeated measure ANOVA, Generalized estimating equation and Bonferroni test. Results A total of 195 eligible children were invited, 110 parents gave consent and 100 children completed the study; 50 in each group. There were statistically significant reductions in mean gingival and plaque scores at each visit when compared to baseline for both toothbrushes (p < 0.05). There were no statistically significant differences between scores for the two toothbrushes at each visit (p > 0.05). Majority of participants gave positive feedback regarding the T-shaped toothbrush. Conclusions Both toothbrushes had similar efficacy in removing plaque and improving gingival health among children. The T-shaped toothbrush is an alternative to the conventional toothbrush for oral hygiene in children. Trial registration Retrospectively registered at ClinicalTrials.gov Registry-NCT03989479 18/06/2019.