Orthopantomograph (OPG) is a 2-dimensional view of the entire upper & lower jaws from ear to ear. An OPG displays all the teeth of upper & lower jaws on a single film.

An OPG may also reveal problems within the jawbone that otherwise go unnoticed or undiagnosed and the joint which connects the jawbone to the head, called the Temporomandibular joint or TMJ.