Table 4 Univariate logistic Regression for the association of study variables with periapical status
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 |