Does the Laser-Microtextured Short Implant Collar Design Reduce Marginal Bone Loss in Comparison with a Machined Collar?

Table 6

Comparison of probing depth parameters after prosthesis delivery between the L group and M group implants.

Months	L ()		M ()		⁢
	Median (, )		Median (, )
4	1.75 (1.5, 1.75)		2.5 (2.5, 2.75)		0.001
12	2 (1.75, 2)		3 (3, 3.25)		0.001
24	2 (2, 2.25)		3.25 (3.25, 3.5)		0.001
36	2.25 (2, 2.5)		3.5 (3.25, 3.5)		0.001
	0.001		0.001
	Median (, )	⁢	Median (, )	⁢	⁢
4–12	0.25 (0.25, 0.25)	0.001	0.5 (0.25, 0.5)	0.001	0.001
4–24	0.5 (0.25, 0.5)	0.001	0.75 (0.5, 0.75)	0.001	0.001
4–36	0.5 (0.5, 0.75)	0.001	0.75 (0.5, 1)	0.001	0.001
12–24	0.25 (0, 0.25)	0.001	0.25 (0.25, 0.25)	0.001	0.463
12–36	0.25 (0.25, 0.5)	0.001	0.25 (0.25, 0.5)	0.001	0.507
24–36	0.25 (0, 0.25)	0.001	0 (0, 0.25)	0.001	0.239

Mann–Whitney U test; Wilcoxon signed-rank test; Friedman test. . : first quartile, 25th percentile; : third quartile, 75th percentile.