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Table 1 Description of risk factors affecting infection after the surgery of cyst enucleation

From: Risk factors for postoperative infection of odontogenic cysts associated with mandibular third molar

Risk factors

Total (n = 81)

Infection group (n = 21)

Non-infection group (n = 61)

p value

Host factors

 Gender (number of males)

64 (79%)

19 (90.5%)

45 (75%)

0.24

 Smoking

28 (34.6%)

9 (42.9%)

19 (31.7%)

0.35

 Diabetes mellitus

4 (6.7%)

0 (0%)

4 (100 %)

0.34§

 Age (years)

47.3 ± 14.0

45.3 ± 14.0

48.0 ± 14.1

0.92

Treatment factors

 Bone grafting

33 (40.7%)

12 (57.1%)

21 (35.0%)

0.12

 Related tooth extraction

15 (18.5%)

2 (9.5%)

13 (21.7%)

0.36

 Previous decompression

6 (7.4%)

0 (0)

6 (100 %)

0.19§

 Type of antibiotics (number of cephalosporin)*

21 (25.9%)

8 (38.1%)

14 (23.3%)

0.30

Cystic lesion factors

 Cortex perforation

24 (29.6%)

7 (33.3%)

17 (28.3%)

0.66

 Preoperative infection

8 (9.9%)

2 (9.5%)

6 (10.0%)

0.99§

 Preoperative cyst size (longest diameter of lesion, mm)

20.6 ± 5.21

20.2 ± 4.71

20.7 ± 5.4

0.41

 Type of cyst (number of dentigerous cyst)**

67 (83%)

14 (66.7%)

53 (88.3%)

0.054

  1. Chi-square test
  2. §Fisher’s exact test
  3. Student’s t test
  4. *Two kinds of antibiotics were used, amoxicillin with clavulanic acid and cephalosporin
  5. **All subjects were classified as dentigerous cyst or odontogenic keratocyst