Mandibular
molar region 		Mandibular
premolar region 		Mandibular
anterior region
P-value 0.001a 0.001a 0.056
Correlation coefficient 0.3 0.24 0.08

aSignificant correlation at the 0.01 level (Pearson correlation test).
CBCT = cone-beam computed tomography; HU = Hounsfield unit.