Table 2.

Surface roughness analysis for 5 Pe-Lite surface samples.

	Ra				Rq				Rz
	Mean	Median	SD	SEM	Mean	Median	SD	SEM	Mean	Median	SD	SEM
Conventional	8.43	8.27	0.65	0.19	10.19	9.95	0.72	0.22	40.54	39.48	2.85	0.86
STANDARD	8.33	8.30	0.23	0.07	10.13	10.01	0.35	0.11	40.84	40.53	2.28	0.69
FINE	7.98	8.02	0.72	0.22	9.87	9.75	0.80	0.24	40.79	40.75	3.32	1.00
COARSE	9.44	9.06	1.42	0.43	11.56	11.10	1.83	0.55	45.20	41.91	8.32	2.51
FAST	8.58	8.46	0.54	0.16	10.62	10.32	0.77	0.23	43.56	43.07	3.56	1.07

Results presented are averages (mean) of twelve measurements (Unit—µm).

SD Standard Deviation, SEM Standard Error of Means.