Table 2. Fractal dimension values of the four regions of interest on cone beam CT images of patients in the study.
ROI | Patients with BP-ONJ |
Controls |
P-value* |
n = 9 |
n = 27 |
||
Mean ± standard deviation | Mean ± standard deviation | ||
ROI-1 | 1.673 ± 0.046 | 1.678 ± 0.034 | 0.81 |
ROI-2 | 1.653 ± 0.052 | 1.657 ± 0.040 | 0.78 |
ROI-3 | 1.684 ± 0.048 | 1.661 ± 0.048 | 0.17 |
ROI-4 | 1.698 ± 0.025 | 1.670 ± 0.046 | 0.03 |
*Generalized estimating equations with robust standard errors
BP-ONJ, bisphosphonates-associated osteonecrosis of the jaws; ROI, region of interest; ROI-1, cancellous bone in the area below the mandibular foramen, in the sagittal plane; ROI-2, cancellous bone in the area above the mandibular foramen, in oblique cut, in the axial plane; ROI-3, cancellous bone anterior to the mental foramen, in the sagittal plane; ROI-4, cancellous bone above the mandibular canal in the axial plane