Abstract

Dental biofilm removal is difficult and can be ineffective in individuals with cerebral palsy. Determine the effectiveness of brushing with an electric toothbrush on and off in comparison with manual brushing for the removal of biofilm in children aged four to 16 years with cerebral palsy. A crossover, randomized, simple-blind, clinical trial was conducted. The examiner was blinded to the brushing method (G1: manual; G2: electric toothbrush on; and G3: electric toothbrush off). The order was determined randomly. The participants (n = 40) were examined before and after brushing performed by caregivers using the Turesky-Quigley-Hein biofilm index. Statistical analysis involved the paired t-test, Wilcoxon, Kruskal-Wallis, and anova tests. Biofilm was significantly reduced with the three brushing methods (P < 0.001) (mean reductions: 47.6% in G1; 47.4% in G2; 44.5% in G3). Significant differences were found between G1 and G3 (P < 0.001) and between G2 and G3 (P = 0.007). No significant difference was found between G1 and G2 (P = 0.06). All methods reduced biofilm. Effectiveness was similar between manual brushing and with the electric toothbrush on, whereas both these methods achieved better results in comparison with the electric toothbrush switched off.

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