TABLE 2. Number and percentage of SEM images with erosions on enamel surface, according to values of visual evaluation mode, with respect to different treatments.

Treatment	Erosion	No erosion
Control	2 (20.0)	8 (80.0)
Day White 2Z	5 (50.0)	5 (50.0)
Platinum	8 (80.0)	2 (20.0)

Values are expressed as n(%).