Table 2: Descriptive statistics and comparison of changes between the two, six and eight-week reactivation intervals, and the control group (four-week).

	Comparison		Difference	95% CI
	Control	Intervention	Difference	upper	lower
^† Canine retraction rate (mm/ 6 months)	4-week interval	2-week	-0.04	-1.18	1.25
		6-week	-0.99	-2.45	0.62
		8-week	-0.7	-1.63	0.54
^† Canine tipping (degrees)	4-week interval	2-week	1.25	-2.11	4.88
		6-week	2.55	-0.37	5
		8-week	1.22	-2.18	4.84
^† Canine rotation (degrees)	4-week interval	2-week	-1.94	-9.26	3.63
		6-week	-3.02	-9.25	2.73
		8-week	-5.26	-10.93	1.83
^† Canine root resorption (mm)	4-week interval	2-week	0.01	-0.29	0.25
		6-week	-0.39	-0.65	-0.13
		8-week	-0.4	-0.71	-0.03

^† Wilcoxon test for pairwise comparisons.