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

Table 5

Pairwise comparisons of changes in Rz parameter of Vitablocs Mark II after immersion.

Solution 1	Solution 2	Mean difference	Std. error	value
Gastric acid	Saliva	0.559	0.493	0.79
	Acetic acid	1.19	0.493	0.14
	Sodium fluoride + acetic acid	2.7	0.493	0.0001
	Sodium fluoride + gastric acid	2.9	0.493	0.0001
Acetic acid	Saliva	1.75	0.493	0.009
	Sodium fluoride + gastric acid	1.51	0.493	0.01
	Sodium fluoride + acetic acid	1.71	0.493	0.03
Sodium fluoride + gastric acid	Saliva	3.459	0.493	0.001
	Sodium fluoride + acetic acid	0.199	0.493	0.99
Sodium fluoride + acetic acid	Saliva	3.26	0.493	0.001