Patient-reported outcome measures and clinical outcomes following peri-implant vestibuloplasty with a free gingival graft versus xenogeneic collagen matrix: a comparative prospective clinical study

International Journal of Implant Dentistry

Table 3 PROMs during the early healing stages

	XCM	FGG	p-value
Duration of pain (day)	5.52 ± 3.57	8.48 ± 2.80	0.005*
Mild pain (day)	2.71 ± 2.17	2.90 ± 2.32	0.785
Moderate pain (day)	2.10 ± 2.32	3.90 ± 2.86	0.030*
Severe pain (day)	0.81 ± 1.66	1.52 ± 2.14	0.234
Maximum pain	46.7 ± 25.9	61.9 ± 20.2	0.040*
Pain during daily oral activities
Speaking	25.2 ± 16.3	41.4 ± 21.3	0.009*
Chewing	47.1 ± 26.9	62.9 ± 20.3	0.039*
Drinking^a	0 (0)	0 (10.0)	0.259
Oral hygiene care^a	10.0 (20.0)	10.0 (20.0)	0.275
Duration of swelling (day)	6.76 ± 3.05	8.00 ± 2.43	0.153
Maximum swelling	56.2 ± 26.0	63.8 ± 23.0	0.329
Duration of bleeding (day)	2.48 ± 2.69	2.86 ± 2.43	0.633
Maximum bleeding	26.2 ± 25.2	36.7 ± 24.6	0.180

^aData are presented as median (interquartile range), and Mann-Whitney U tests were used to calculate significance levels (p-value). Other data are presented as mean ± standard deviation. Independent sample T tests were used to calculate significance levels (p-value). *Statistically significant difference between groups (p < 0.05)