Table 1.

Comparison of bone thickness between time intervals and measurement levels.

Level	Bone Dimension (mm)		Dimensional Change (mm) (T-2) − (T-1)	p Value
	T-1 (Mean ± SD)	T-2 (Mean ± SD)
Vertical bone height:
VBH	1.58 ± 0.48	0.89 ± 0.42	−0.69 ± 0.46	<0.001 *
VOH	1.47 ± 1.23	1.08 ± 1.12	−0.39 ± 0.30	0.001 *
Horizontal buccal bone thickness:
H(0)-BT	2.60 ± 1.04	2.14 ± 1.00	−0.46 ± 0.32	<0.001 *
H(1)-BT	3.04 ± 1.12	2.5 ± 1.17	−0.54 ± 0.47	0.001 *
H(5)-BT	3.57 ± 1.38	3.27 ± 1.32	−0.30 ± 0.18	<0.001 *
H(9)-BT	4.14 ± 1.98	3.96 ± 2.07	−0.18 ± 0.28	0.014 *
Horizontal oral bone thickness:
H(0)-OT	3.01 ± 1.79	2.82 ± 1.83	−0.20 ± 0.22	0.009 *
H(1)-OT	3.15 ± 1.90	2.94 ± 1.87	−0.21 ± 0.16	0.001 *
H(5)-OT	4.40 ± 1.78	4.28 ± 1.80	−0.12 ± 0.08	<0.001 *
H(9)-OT	4.78 ± 1.82	4.66 ± 1.82	−0.12 ± 0.08	<0.001 *
Total horizontal bone thickness:
H(0)-BOT	10.10 ± 1.54	9.49 ± 1.59	−0.62 ± 0.43	<0.001 *
H(1)-BOT	11.07 ± 1.73	10.37 ± 1.73	−0.70 ± 0.49	<0.001 *
H(5)-BOT	12.34 ± 1.55	12.10 ± 1.66	−0.24 ± 0.21	0.003 *
H(9)-BOT	12.10 ± 1.55	11.88 ± 1.54	−0.22 ± 0.33	0.007 *

SD = standard deviation, T-1 = immediately after immediate implant placement, T-2 = 6 months following immediate implant placement, VBH = vertical buccal bone height, VOH = vertical oral bone height, H(n)BT = horizontal buccal bone thickness at n millimeters to implant platform, H(n)OT = horizontal oral bone thickness at n millimeters to implant platform, H(n)BOT =horizontal total bone thickness (from buccal to oral aspect) at n millimeters to implant platform. * Significant difference at p value < 0.05.