An Observational Cohort Study on Delayed-Onset Infections after Mandibular Third-Molar Extractions

Table 2

Variables recorded at the time of surgery .

	Extraction without DOI (n = 209)	Extraction with DOI (n = 8)	p value
Duration of surgical procedure (minutes)	40 (30–55)	50 (48–60)	0.02
Sedation	25 (12.0)	0	0.60
Postoperative cortisone	39 (18.7)	1 (12.5)	0.99
Proximity to inferior alveolar nerve	62 (29.8)	2 (25.0)	0.99
Prescribed CT	77 (37.0)	1 (12.5)	0.26
Previous pericoronitis	47 (22.6)	1 (12.5)	0.69
Ongoing infection	10 (4.8)	0	0.99
Ongoing antibiotic therapy	15 (7.2)	0	0.99
Expert surgeon	26 (12.4)	0	0.59
Type of flap			0.86
0 = no flap	13 (6.2)	0
1 = envelope	151 (72.3)	6 (75.0)
2 = with vertical buccal-mesial releasing incision	9 (4.3)	0
3 = other	36 (17.2)	2 (25.0)
Ostectomy	191 (91.4)	7 (87.5)	0.53
Tooth sectioning	160 (76.6)	8 (100.0)	0.21

Data are expressed as number (%) or median (IQR).