Table 4.

Radiographic CBCT measurements to quantify skeletal, dentoalveolar and dental expansion. Sutural expansion, intermolar width and palatal maxillary width (SEM, IMW and PMW) were measured at first molar and quantified on the same coronal cross-sectional slice.

Sutural expansion (SEM)	The sutural expansion in the middle of the palate. Distance between the left and right external border of the palatal aspect of the maxilla, in the middle of the palate between the palatine bone and the nasal floor, on a coronal cross-sectional slice at first molar. Through the midportion of the first molar.
Intermolar width (IMW)	Distance between right and left tip of palatal cusp of first molars in a coronal cross-sectional slice through the midportion of first molar.
Palatal maxillary width (PMW)	Distance between the right and left external border of the palatal maxillary bone, on a coronal cross-sectional slice at first molar. Through the midportion of the first molar.