Efficacy of pre- and postirradiation hyperbaric oxygen therapy in the prevention of postextraction osteoradionecrosis: a systematic review.

Purpose: There is still considerable controversy regarding whether hyperbaric oxygen (HBO) therapy used preoperatively and postoperatively will prevent osteoradionecrosis in previously irradiated patients undergoing tooth extraction. The purpose of this systematic review was to evaluate the best evidence available in an attempt to find an answer to this question.

Materials And Methods: The literature search on Medline covered the period from January 1948 to March 2008.

Panoramic imaging of the temporomandibular joint: an experimental study using cadaveric skulls.

Objective: The purpose of this study was to determine if condylar morphology can be accurately depicted on the panoramic radiograph and if variations in condylar anatomy affect the radiographic appearance of the condyle.

Study Design: The shape and angulation of the condyle were determined on 8 cadaveric human skulls. Lead foil markers were then placed on the articulating surface and lateral and medial pole of each condyle.