Evaluation of dimensional behavior of peri-implant tissues in implants immediately exposed or submerged in fresh extraction and healed sites: a histological study in dogs

International Journal of Implant Dentistry

Table 3 Statistical analysis comparing measured distances (A-B and C-D) among different groups in buccal and lingual sites

		Group
		1	2	3	4	Friedman test	Friedman statistic
		Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Crestal bone loss (A-B distance)	Buccal	1.88 ± 0.42^a	2.23 ± 0.33^bc	0.34 ± 0.30^ab	0.69 ± 0.21^c	P < 0.0001	26.45
Crestal bone loss (A-B distance)	Lingual	0.93 ± 0.41^d	1.41 ± 0.38^ef	031 ± 0.27^de	0.57 ± 0.32^f	P < 0.0001	21.43
Tissue thickness (C-D distance)	Buccal	0.70 ± 0,.25^gh	0.75 ± 0.25	1.34 ± 0.35^g	1.36 ± 0.46^h	P = 0.0005	17.79
Tissue thickness (C-D distance)	Lingual	0.95 ± 0.30ⁱ	1.01 ± 0.33^j	1.82 ± 0.41^ij	1.68 ± 0.39	P = 0.0003	18.68

Different superscript letters in the same row indicate significant differences between groups assessed by Dunn’s multiple comparison test (P < 0.05) and Wilcoxon signed rank test for comparison of different groups
^aP = 0.0059
^bP = 0.0055
^cP = 0.0053
^dP = 0.0125
^eP = 0.0056
^fP = 0.0058
^gP = 0.0039
^hP = 0.0080
ⁱP = 0.0058
^jP = 0.0039