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

Table 2

Mean and standard deviation of changes in Ra, Rq, and Rz parameters of IPS e.max CAD before and after immersion in different solutions.

Solution	ΔRa	ΔRq	ΔRz
Saliva	0.13 (0.20)	0.17 (0.24)	0.71 (0.72)
Acetic acid	0.1 (0.19)	0.13 (0.23)	0.27 (0.72)
Gastric acid	0.09 (0.18)	0.1 (0.23)	0.4 (1)
Sodium fluoride + acetic acid	0.23 (0.4)	0.29 (0.45)	1.05 (1.23)
Sodium fluoride + gastric acid	0.26 (0.29)	0.32 (0.37)	1.28 (1.32)