Effect of Recasted Material Addition on the Quality of Metal-Ceramic Bond: A Macro-, Micro-, and Nanostudy

Table 3

The mean values of surface roughness parameters (with SD values) and Kruskal–Wallis H_K-W statistics results calculated for each parameter.

Specimen	Rq ± SD (m)	Ra ± SD (m)	Rp ± SD (m)	Rv ± SD (m)	Rz ± SD (m)
100	0.27 ± 0.08^a	0.23 ± 0.07^a	0.50 ± 0.14^a	0.49 ± 0.11^a	1.04 ± 0.17^a
50	0.38 ± 0.13^b	0.27 ± 0.10^b	0.68 ± 0.27^b	0.80 ± 0.19^b	1.37 ± 0.39^b
0	0.24 ± 0.06^a	0.20 ± 0.03^a	0.33 ± 0.12^c	0.34 ± 0.05^c	0.75 ± 0.15^c
Kruskal–Wallis H test	HK-W = 27.42;	HK-W = 12.41;	HK-W = 25.99;	HK-W = 77.27;	HK-W = 49.71;

R_q, root-mean-square deviation of the roughness profile; R_a, arithmetical mean deviation of the profile; R_p, maximum roughness profile peak height; R_v, maximum roughness profile valley depth; R_z, ten-point height of irregularities; the mean values with dissimilar letters in the same column are significantly different at . The letters a, b, and c indicate the existence of significant differences between the mean values of surface roughness parameters.