P

Palatal expansión

The lateral movement of the maxillae to increase palatal width.

Panoramic radiograph

A radiographic tomography of the jaws, taken with a specialized machine designed to present a panoramic view of the full circumferential length of the jaws on a single film. Also known by several proprietary brand names of machines, most of which include ‘pan’ as a part of the name. (Also termed panoral or panorex).

Protrusión

The state of being anteriorly positioned.