. 2020 Nov 5;14(3):224–230. doi: 10.1177/1943387520970792

Table 1.

Mean and SD Values of Micro-Roughness Results (µm).

Group (n = 10)	Sa	Sp	Sv	Sz
1	12.55^a	29.74^a	30.61^a	60.35^a
	4.03	7.32	8.20	15.37
2	6.00^b	14.26^b	14.90^b	29.16^b
	1.69	3.23	3.71	6.82
3	4.88^b	14.86^b	15.88^b	30.74^b
	1.72	4.56	3.27	7.65
4	11.98^a	34.91^c	56.64^c	107.05^d
	4.95	9.54	13.24	51.82
5	2.72^c	12.02^b	9.59^b	23.83^b
	0.88	5.71	2.86	13.40
6	13.95^a	43.56^c	62.67^c	106.23^d
	4.33	15.42	8.03	18.59
7	2.31^c	9.07^b	10.39^b	19.46^b
	1.16	3.26	2.73	5.55
8	4.29^b	23.23^a	19.55^b	42.75^c
	2.09	6.18	2.72	7.78

* Sp (maximum value of peak height); Sv (maximum value of valley depth); Sz (sum of Sp and Sv); and Sa (Arithmetical mean height of the surface).

* Similar superscript letters within the same measurement indicate homogeneous subsets (P > 0.05).