RESULTS	A highly statistically significantly greater reduction in dental plaque was produced by the powered toothbrush compared with the control treatment ; mean plaque index at day 5 , powered toothbrush 0.75 [ 95 % confidence interval ( CI ) 0.53 , 1.00 ] , sponge toothette 1.35 ( 95 % CI 0.95 , 1.74 ) , p = 0.006 .\