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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

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

Outcomes Groups Follow-ups 24 h–7 days 7–21 days
24-h 7-day 21-day p-valueb Effect sizeb p-valueb Effect sizeb
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-valuea 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-valuea 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-valuea 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-valuea 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-valuea 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-valuea 0.365 0.353 0.443     
  1. aMann-Whitney test
  2. bWilcoxon signed ranks test
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