Abstract
A case of Prader-Willi syndrome which associated with oral, maxillo-facial deformities in a 5-year-old boy is presented.
The facial manifestation showed almond-like eye, flat nasal bridge, and slight fish-mouth in the upper lip; moreover, a highly arched palate, decreasing saliva secretion were found in oral the examination.
The X-ray finding revealed two impacted supernumerary teeth in the median part of the upper jaw, and cephalometric analysis revealed a characteristic feature with delayed development of the facial bone.
