Fig. 3.
The types of the inferior mandibular cortex are subjectively classified as follows. A. Type 1: the cortical endosteal margin appears even and regular. B. Type 2: the endosteal margin appears semilunar defects or 1 to 2 layers of cortical endosteal residues. C. Type 3: the cortical layer has numerous (>3) endosteal residues and is clearly porous.