Table 2.

Toothpaste weight at baseline, week 4, and week 8.

	Test group1			Control group2			P
	n	Mean	SD	n	Mean	SD
Total weight of distribution	45	260.32	7.57	43	261.76	1.86	0.236
Weight used in the first 4 weeks	45	57.93	19.71	42	62.99	20.34	0.248
Total weight used in 8 weeks	42	151.42	35.18	37	152.57	31.45	0.880

1: Of the 45 subjects in the test group, 3 did not bring the toothpaste back at 8-week.

2: Of the 43 subjects in the control group, 1 did not bring the toothpaste back at 4-week; 6 did not bring back at 8-week.