Table 5.

Mean frequency and duration (in minutes) of tooth brushing in the two groups during the follow-up period.

	First follow-up (T1)	Second follow-up (T2)	Third follow-up (T3)	p value^a
	Mean ± SD	Mean ± SD	Mean ± SD	Intergroup comparison	Intragroup comparison
Brushing frequency
Intervention group	1.88 ± 0.55	1.86 ± 0.45	1.87 ± 0.50	p(TIME): 0.283 p(GROUP): 0.359 p(TIME × GROUP): 0.150	0.089
Control group	1.98 ± 0.79	2.03 ± 0.74	1.90 ± 0.77	p(TIME): 0.283 p(GROUP): 0.359 p(TIME × GROUP): 0.150	0.847
Brushing duration
Intervention group	4.62 ± 2.93	4.33 ± 2.35	4.27 ± 2.39	p(TIME): 0.5 p(GROUP): 0.362 p(TIME × GROUP): 0.264	0.761
Control group	4.98 ± 4.74	5.09 ± 4.67	5.02 ± 4.97	p(TIME): 0.5 p(GROUP): 0.362 p(TIME × GROUP): 0.264	0.122

^aRM-ANOVA.