Table 4. Changes in surface roughness (Ra (in µm), mean values ± standard deviation) of used ceramic materials in each mouthrinse (n = 10).

		Listerine	Klorhex	Tantum Verde	D. Water
IPS e.max CAD	Baseline	0.23 ± 0.02	0.22 ± 0.02	0.22 ± 0.03	0.21 ± 0.02
	120 h	0.27 ± 0.03	0.26 ± 0.02	0.26 ± 0.03	0.23 ± 0.03
IPS Empress CAD	Baseline	0.26 ± 0.02	0.25 ± 0.02	0.24 ± 0.03	0.27 ± 0.01
	120 h	0.34 ± 0.02	0.30 ± 0.03	0.30 ± 0.02	0.28 ± 0.01
Lava Ultimate CAD	Baseline	0.22 ± 0.02	0.21 ± 0.03	0.22 ± 0.02	0.21 ± 0.02
	120 h	0.29 ± 0.02	0.32 ± 0.02	0.32 ± 0.02	0.22 ± 0.02