Relative effectiveness of a rotary and conventional toothbrush in plaque removal

Abstract
The ability of a powered rotary toothbrush to remove 3- and 4-day-old microbial plaque deposits was evaluated in 10 young adults with healthy gingivae. Using a split mouth technique and a cross-over experimental design, the powered brush was compared with a conventional hand brush over a 14-day period. Statistical analysis of the results showed no significant differences between either method of brushing when the whole mouth, maxillary or mandibular arches were compared. Further analysis of the proximal scores again showed no significant differences between the powered brush or handbrush. The majority of the subjects preferred the conventional handbrush to the powered brush.

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