Table I.

Histomorphometric results; fraction of new, old and total bone, marrow-like and fibrous tissues at implant surface (surface fraction), and in a concentric peri-implant gap (volume fraction) at 2.5 mm divided in an outer gap (1500 μm) and inner gap. n (control = 10, n (PTH) = 8. Mann-Whitney test (%, range.

	Total bone	New bone	Old bone	Marrow	Fibrous
Implant interface
Control	12 (8 to 16)	10 (7 to 15)	1 (1 to 2)	87 (84 to 92)	0 (0 to 0)
PTH*	12 (9 to 16)	12 (8 to 14)	1 (1 to 2)	86 (83 to 88)	0 (0 to 1)
Inner gap
Control	26 (23 to 30)	14 (13 to 16)	13 (9 to 17)	73 (70 to 75)	0 (0 to 0)
PTH	33 (28 to 34)	20 (16 to 22)†	13 (11 to 15)	67 (65 to 70)	0 (0 to 0)
Outer gap
Control	26 (23 to 27)	15 (14 to 16)	11 (8 to 12)	74 (73 to 77)	0 (0 to 0)
PTH	30 (27 to 32)‡	21 (17 to 23)‡	8 (7 to 12)	70 (68 to 73)	0 (0 to 0)

^*PTH, parathyroid hormone

^†p = 0.07, PTH compared with control within region

^‡p < 0.05