Table 1. Horizontal and vertical ridge changes in the DL group from baseline to 4 months of healing.

No. (n=6)	Tooth site	Horizontal ridge changes (mm)			Vertical ridge changes (mm)
		HW1	HW3	HW5	BH	MH	LH
1	#34	−1.6	−0.9	−0.4	−3.3	1.4	−1.1
2	#36	−2.4	−1.1	−0.8	−1.3	−1.0	−0.2
3	#37	−2.1	−1.4	−0.6	−0.7	−0.2	−0.3
4	#36	−1.2	−0.1	−0.1	−1.3	−3.9	−0.5
5	#37	−1.6	−0.7	−0.4	−0.2	−0.7	−3.3
6	#37	−1.8	−0.3	−0.1	−1.0	0.3	−0.4
Mean±SD		−1.8±0.4	−0.8±0.5	−0.4±0.3	−1.3±1.1	−0.7±1.8	−1.0±1.2

DL: the socket was filled with deproteinized bovine bone mineral with 10% collagen and covered by a double-layer of a collagen membrane, HW1–5: horizontal width in the 1-, 3-, and 5-mm apically below the ridge crest, BH: vertical change of the buccal alveolar crest, MH: vertical change of the mid-alveolar crest, LH: vertical change of the lingual alveolar crest, SD: standard deviation.