Variables | Â | P | OR | 95% CI |
---|---|---|---|---|
Length of root filling | 0-2Â mm from radiographic apex | Â | 1.00 | Â |
More than 2 mm short from the radiographic apex | ≤0.001 | 1.76 | 1.62–1.91 | |
Extrusion of material through the apex | ≤0.001 | 2.51 | 2.12–2.97 | |
Density of root filling | Homogenous | Â | 1.00 | Â |
Inhomogenous | ≤0.001 | 1.61 | 1.47–1.76 | |
Restoration | No restoration | Â | 1.00 | Â |
Filling | ≤0.001 | 0.45 | 0.39–0.52 | |
Crown | ≤0.001 | 0.34 | 0.29–0.41 | |
Bridge | ≤0.001 | 0.33 | 0.27–0.40 | |
Quality of prosthetic restoration | Adequate | Â | 1.00 | Â |
Inadequate | 0.020 | 1.63 | 1.45–1.81 | |
Post in root canal | No post | Â | 1.00 | Â |
Fibre post | NS | 0.95 | 0.90–1.24 | |
Prefabricated | NS | 1.68 | 0.89–2.89 | |
Cast post | NS | 1.34 | 0.69–2.35 | |
Caries | Absent | Â | 1.00 | Â |
Present | ≤0.001 | 2.30 | 2.14–2.48 | |
Orthodontic appliance | Absent | Â | 1.00 | Â |
Present | NS | 0.74 | 0.42–1.34 | |
Tooth localization | Maxilla | Â | 1.00 | Â |
Mandibula | ≤0.001 | 2.30 | 2.14–2.47 | |
Tooth type | Incisor | Â | 1.00 | Â |
Canine | 0.012 | 0.79 | 0.67–0.95 | |
Premolar | NS | 0.97 | 0.87–1.08 | |
Molar | 0.000 | 1.79 | 1.62–1.98 | |
Gender | Female | Â | 1.00 | Â |
Male | ≤0.001 | 1.44 | 1.34–1.55 |