Table 3.

Histomorphometrical analysis: tissue area fraction on implant surface and tissue volume fraction in the gap (ingrowth)

	New bone	Bone graft	Fibrous tissue
	mean% (SD)	mean% (SD)	median% (IQR)
Implant surface
Control	6 (3.7)	0 (0.2)	18 (3–31)
Rinsed	7 (2.9)	0 (0.2)	7 (1–18)
Rinsed – Control a	0 (–1.1 to 3.0)	0 (–0.1 to 0.3)
p-value	0.3 b	0.4 b	0.2 c
Ingrowth
Control	9 (2.7)	13 (4.1)	4 (1–6)
Rinsed	9 (3.3)	13 (4.4)	2 (1–5)
Rinsed – Control a	0 (–2.1 to 3.0)	0 (–1.5 to 2.7)
p-value	0.7 b	0.5 b	0.3 c

IQR: interquartile range.

^a Absolute difference between treatment groups. Mean (95% CI).

^b T-test

^c Wilcoxon