Progress in Orthodontics

Table 1 Baseline comparison between groups

From: A prospective randomized clinical trial into the capacity of a toothpaste containing NovaMin to prevent white spot lesions and gingivitis during orthodontic treatment

	ReNew™	Crest®	P value (t-test)
Mean DI score	0.33	0.33	0.27
Mean GI score	2.14	2.15	0.95
Mean PI score	3.04	3.41	0.27
Mean age	15.6	15.3	0.63
Tx time	1.5	1.2	0.23

P value was set at 0.05. No significant difference between groups at baseline were detected using two-sample t-test

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