In Vitro Effect of Acidic Solutions and Sodium Fluoride on Surface Roughness of Two Types of CAD-CAM Dental Ceramics

Table 1

Mean and standard deviation of changes of Ra, Rq, and Rz parameters of Vitablocs Mark II CAD before and after immersion in different solutions.

Solution	ΔRa	ΔRq	ΔRz
Saliva	−0.03 (0.17)	−0.04 (0.2)	−0.38 (0.62)
Acetic acid	0.25 (0.25)	0.32 (0.28)	1.37 (0.66)
Gastric acid	0.07 (0.22)	0.09 (0.31)	0.18 (1.31)
Sodium fluoride + acetic acid	0.42 (0.22)	0.54 (0.26)	2.88 (0.93)
Sodium fluoride + gastric acid	0.43 (0.21)	0.57 (0.26)	3.08 (1.21)