Postsurgical oral symptoms after insertion of one or two implants for mandibular overdentures: short-term results of a randomized clinical trial

International Journal of Implant Dentistry

Table 2 Patient perception of postsurgical outcomes according to the follow-up periods and treatment groups. Data are expressed as median (interquartile) values

Outcomes	Groups	Follow-ups			24 h–7 days		7–21 days
Outcomes	Groups	24-h	7-day	21-day	p-value^b	Effect size^b	p-value^b	Effect size^b
Pain in the surgical area	1-IOD	40 (40)	20 (20)	0 (10)	0.012	− 0.53	< 0.001	− 0.74
	2-IOD	50 (65)	30 (50)	5 (28)	0.001	− 0.69	0.002	− 0.64
	p-value^a	0.243	0.400	0.188
Pain when chewing	1-IOD	40 (40)	20 (20)	10 (20)	0.006	− 0.57	0.059	− 0.39
	2-IOD	40 (78)	20 (50)	10 (20)	0.001	− 0.66	0.008	− 0.54
	p-value^a	0.472	0.820	0.812
Swelling	1-IOD	0 (10)	0 (10)	0 (0)	0.020	− 0.49	0.439	− 0.16
	2-IOD	10 (28)	0 (10)	0 (0)	0.011	− 0.52	0.067	− 0.37
	p-value^a	0.045	0.361	0.706
Bleeding	1-IOD	10 (10)	0 (0)	0 (0)	0.003	− 0.62	0.713	− 0.08
	2-IOD	10 (20)	0 (8)	10 (10)	0.009	− 0.54	0.020	− 0.48
	p-value^a	0.669	0.320	0.307
Unpleasantness	1-IOD	30 (40)	20 (30)	10 (10)	0.008	− 0.55	0.098	− 0.35
	2-IOD	45 (60)	25 (50)	20 (40)	< 0.001	− 0.73	0.033	− 0.44
	p-value^a	0.243	0.536	0.474
Overall score	1-IOD	24 (26)	14 (14)	4 (16)	< 0.001	− 0.76	0.009	− 0.54
	2-IOD	41 (37)	18 (32)	8 (17.5)	< 0.001	− 0.82	0.001	− 0.68
	p-value^a	0.365	0.353	0.443