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

Table 4

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

Solution 1	Solution 2	Mean difference	Std. error	value
Gastric acid	Saliva	0.043	0.107	0.99
	Acetic acid	0.129	0.107	0.75
	Sodium fluoride + acetic acid	0.32	0.107	0.03
	Sodium fluoride + gastric acid	0.352	0.107	0.01
Acetic acid	Saliva	0.171	0.107	0.8
	Sodium fluoride + gastric acid	0.224	0.107	0.24
	Sodium fluoride + acetic acid	0.192	0.107	0.39
Sodium fluoride + gastric acid	Saliva	0.395	0.107	0.004
	Sodium fluoride + acetic acid	0.032	0.107	0.99
Sodium fluoride + acetic acid	Saliva	0.363	0.107	0.01