A Prospective, Double-Blind, Randomized, Controlled Clinical Trial in the Gingivitis Prevention with an Oligomeric Proanthocyanidin Nutritional Supplement

Table 3

Brightness of the gingiva.

Brightness of the gingiva	Experimental	Control
Baseline	30.75 ± 4.19	31.37 ± 3.55	0.351
Day 14	32.70 ± 3.48	31.50 ± 3.10	0.480
Day 21	32.57 ± 4.72	31.22 ± 2.52	0.425
Dif (day 21 and day 14)	−0.12 ± 1.85	−0.28 ± 1.92	0.545