|
Variable
|
Apical periodontitis N (%)
|
OR
|
95% CI
|
P value
|
|---|
|
Age (Years)
| |
1.02
|
0.99–1.05
|
0.08
|
|
Sex
|
|
Female
|
75 (66.4%)
|
1.11
|
0.50–2.44
|
0.78
|
|
Tooth type
|
|
Incisors
|
57 (71.2%)
|
1
| | |
|
Canines
|
11 (61.1%)
|
0.63
|
0.21–1.83
|
0.40
|
|
Premolars
|
94 (72.9%)
|
1.06
|
0.57–1.97
|
0.85
|
|
Molars
|
96 (73.3%)
|
1.10
|
0.59–2.05
|
0.74
|
|
Coronal restoration quality
|
|
Adequate
|
105 (66%)
|
1
| | |
|
Inadequate
|
153 (76.9%)
|
1.71
|
1.07–2.72
|
0.02
|
|
Coronal restoration type
|
|
Temporary or absent
|
20 (90.9%)
|
1
| | |
|
Filling inserted during plastic phase
|
169 (76.3%)
|
0.20
|
0.04–0.90
|
0.03
|
|
Full coverage crown
|
69 (81.2%)
|
0.43
|
0.09–2.03
|
0.28
|
|
Cavity design
|
|
CL IV
|
1 (20%)
|
1
| | |
|
CL I
|
20 (64.5%)
|
7.27
|
0.72–73.3
|
0.09
|
|
CL II
|
113 (70.6%)
|
9.61
|
1.07–88.3
|
0.04
|
|
CL III
|
31 (62%)
|
6.52
|
0.67–62.8
|
0.10
|
|
Gingival status
|
|
Healthy
|
122 (66.3%)
|
1
| | |
|
Gingival inflammation
|
126 (78.3%)
|
1.85
|
1.14–2.99
|
0.01
|
|
Periodontal status
|
|
Healthy
|
207 (74.2%)
|
1
| | |
|
Periodontal disease
|
38 (63.3%)
|
1.66
|
0.92–3.00
|
0.09
|
|
Intracanal posts
|
|
Present
|
46 (79.3%)
|
1
| | |
|
Absent
|
210 (70.7%)
|
0.63
|
0.31–1.24
|
0.18
|
|
Opposing tooth
|
|
Present
|
225 (70.8%)
|
1
| | |
|
Absent
|
28 (82.4%)
|
1.40
|
0.62–3.13
|
0.40
|
|
Root canal filling quality
|
|
Under and over-filling
|
158 (78.6%)
|
2.57
|
1.66–4.002
|
< 0.001
|
|
Inadequate homogeneity
|
199 (80.6%)
|
3.65
|
2.24–5.95
|
< 0.001
|
|
Inadequate conicity
|
198 (78.9%)
|
2.92
|
1.79–4.76
|
< 0.001
|
