Table 2. Radiologic and histometric results for bone mineral density (BMD), bone-to-implant contact (BIC), bone area (bone volume/tissue volume), and empty lacuna count (number of empty lacunae/bone volume). Data are mean ± SD values.

	Sacrifice time after implantation
	Group	2 weeks	4 weeks	8 weeks
BMD	Exp.	817.7 ± 825.1*	1685.1 ± 1094.5*	2423.2 ± 997.9
	Control	1443.1 ± 617.5*	2593.7 ± 711.4*	2692 ± 447.9
	P value	.045*	.047*	.526
BIC (%)	Exp.	18.46 ± 22.14	21.90 ± 28.25	44.69 ± 32.88
	Control	28.74 ± 36.54	38.29 ± 42.89	70.25 ± 31.71
	P value	.420	.393	.137
Bone area (%)	Exp.	23.77 ± 16.65	31.20 ± 31.20*	66.13 ± 15.16*
	Control	40.20 ± 24.91	65.77 ± 25.84*	82.03 ± 13.77*
	P value	.076**	.018*	.045*
Empty lacuna count (%)	Exp.	0.0153 ± 0.0086	0.0273 ± 0.0221**	0.0242 ± 0.0093*
	Control	0.013 ± 0.0112	0.0071 ± 0.0050**	0.0091 ± 0.0048*
	P value	.353	.051**	.003*

^*Significantly different at P < .05

^**Significantly different at P < .10