Research Article

Dental and Skeletal Changes after Transpalatal Distraction

Table 2

Reference points and their respective segments in frontal cephalograms.

Reference pointSegment

Lateral border of the pyriform aperture at the base of the inferior conchaW3
Lateral maxillary wall at the base of the zygomaticoalveolar crestW2
Buccal surface of the second maxillary molarW1