Table 3.

Sample number (n), minimum R_a, maximum R_a, mean R_a, and R_a standard deviation of each experimental group.

Implant System	n	Minimum Ra	Maximum Ra	Mean Ra	Ra Standard Deviation
STRAUMANN®	10	1.99	3.34	2.49	0.43126
MICRODENT®	10	0.95	1.13	1.07	0.05959
ASTRATECH®	10	1.80	2.14	1.97	0.10692
AVINENT®	10	1.99	2.78	2.39	0.27727
BIOMET 3i®	10	0.73	0.93	0.79	0.06567
KLOCKNER®	10	2.48	3.33	2.89	0.29578
MOZOGRAU®	10	1.06	1.47	1.31	0.11657
NOBELBIOCARE®	10	0.76	1.37	1.10	0.17735
GALIMPLANT®	10	1.07	1.72	1.45	0.24501