Table 3.

Radiographic marginal bone level and clinical recession on neighbouring tooth surface

Group	Baseline (mean, 95% CI)	Follow-up (mean, 95% CI)	Difference (mean, 95% CI)	p value
Radiographic marginal bone level in mm
Test	1.94 (1.50 to 2.38)	2.07 (1.64 to 2.51)	− 0.14 (− 0.25 to − 0.02)	p = 0.03
Control	2.34 (1.62 to 3.08)	2.49 (1.73 to 3.26)	− 0.15 (− 0.26 to − 0.04)	p = 0.01
			p = 0.87
Recession in mm
Test	0.88 (0.42 to 1.35)	1.10 (0.65 to 1.55)	− 0.22 (− 0.62 to 0.19)	p = 0.26
Control	1.17 (0.47 to 1.86)	1.23 (0.69 to 1.78)	− 0.07 (− 0.74 to 0.60)	p = 0.83
			p = 0.57

Radiographic marginal bone level and clinical recession on neighbouring tooth surfaces at the time of baseline (before primary surgery) and at follow-up in the test and control group. The p values were calculated using the two sample t test with equal variance