Basic Patient Position
Dentures and oral jewellery should be removed.
The patient sits erect facing the bucky, midsagittal plane
in the midline of the film, coronal plane parallel to the film interpupillary
line parallel to the floor. The chin is lowered to bring the
orbital meatal line at 90 degrees to the film.
Mandible PA Patient Position
Based on Movin & Karlsson 1975 Skeletal
projections for Diagnostic Radiology Lippincott