Table 3.

Comparison of changes in brushing habits by group.

Variable		Before (baseline)	After (6-month recall)	P valuea
Number of toothbrushing events, mean (SD)
	ORTb (n=50)	2.54 (0.61)	2.36 (0.60)	.02
	ITTc (n=50)	2.72 (0.61)	2.60 (0.61)	.057
	MTd (n=50)	2.70 (0.61)	2.62 (0.57)	.32
Length of each toothbrushing event (minutes), mean (SD)
	ORT (n=50)	2.86 (0.76)	3.04 (0.49)	.12
	ITT (n=50)	3.10 (0.81)	3.28 (0.67)	.06
	MT (n=50)	3.12 (0.82)	3.46 (0.84)	.01

^at test.

^bORT: oscillating-rotating power toothbrush.

^cITT: interactive telemonitoring toothbrush.

^dMT: manual toothbrush.