Table 2.

Implant insertion level at surgery and bone level changes (BLC) between succeeding evaluation periods. Classification according to mesial and distal DIB measurements at surgery for the respective implant side or according to the averaged mesial and distal measurements of DIB for mean values per implant. P values for one‐way ANOVA. Post hoc analysis using Tukey correction α = 0.05

	N	DIB surgery (Mean ± SD)	BLC surgery–load (Mean ± SD)	BLC load – 6 months (Mean ± SD)	BLC 6–12 months (Mean ± SD)
Mesial side
Subcrestal	19	−0.99 ± 0.55	−0.87 ± 0.43a	0.02 ± 0.38	−0.02 ± 0.21
Epicrestal	20	0.02 ± 0.05	−0.39 ± 0.45	0.18 ± 0.44	−0.03 ± 0.24
Supracrestal	7	0.71 ± 0.29	−0.15 ± 0.37	0.42 ± 0.32	−0.02 ± 0.13
			P < 0.05	P = 0.075	P = 0.978
Distal side
Subcrestal	16	−0.79 ± 0.39	−0.58 ± 0.49	0.00 ± 0.42	−0.06 ± 0.47
Epicrestal	20	0.01 ± 0.02	−0.46 ± 0.38	0.07 ± 0.29	0.14 ± 0.46
Supracrestal	10	0.73 ± 0.31	−0.43 ± 0.54	0.23 ± 0.42	0.09 ± 0.23
			P = 0.651	P = 0.328	P = 0.180
Mean
Subcrestal	22	−0.69 ± 0.30	−0.69 ± 0.33b	0.05 ± 0.34	0.01 ± 0.18
Epicrestal	13	0.01 ± 0.03	−0.37 ± 0.40	0.09 ± 0.42	−0.02 ± 0.24
Supracrestal	11	0.52 ± 0.23	−0.37 ± 0.44	0.27 ± 0.31	0.01 ± 0.16
			P = 0.018	P = 0.254	P = 0.305

^aStatistically different from implants placed epicrestal (mean difference −0.47, P = 0.004) and the implants placed supracrestal (mean difference −0.72, P = 0.001).

^bOnly statistically different from implants placed epicrestal (mean difference −0.32, P = 0.043).