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

Table 3

Pairwise comparisons of different solutions regarding the changes in Ra after immersion using Tukey’s test.

Solution 1	Solution 2	Mean difference	Std. error	value
Gastric acid	Saliva	0.032	0.087	0.99
	Acetic acid	0.092	0.087	0.83
	Sodium fluoride + acetic acid	0.242	0.087	0.05
	Sodium fluoride + gastric acid	0.26	0.087	0.03
Acetic acid	Saliva	0.124	0.087	0.61
	Sodium fluoride + gastric acid	0.168	0.087	0.31
	Sodium fluoride + acetic acid	0.149	0.87	0.43
Sodium fluoride + gastric acid	Saliva	0.292	0.087	0.01
	Sodium fluoride + acetic acid	0.018	0.087	1.0
Sodium fluoride + acetic acid	Saliva	0.274	0.087	0.02