Fig. 4From: Efficacy of electric-powered cleaning instruments in edentulous patients with implant-supported full-arch fixed prostheses: a crossover designComparison of plaque in the buccal and palatal areas and plaque removal rates. a The plaque-covered areas in the palatal side are larger than those in the buccal side. b The SD and OralB plaque removal rates in the buccal area were significantly higher than those of manual brushing; no significant differences were observed among the other instruments. c There were no significant differences in the plaque removal rates in the palatal side among instruments. *p < 0.05Back to article page