A new positioning device for extraoral radiography with conventional dental x-ray machines.
Conventional dental periapical x-ray machines are frequently used for taking extraoral radiographs. Such views as the anteroposterior, lateral skull, oblique, Caldwell, Waters, etc. require large focus-to-film distances. A positioning device that makes long-distance positioning easy and foolproof has been developed. This eliminates undesirable repetition and therefore reduces unnecessary exposure of the patient.
D004867:Equipment Design; D006801:Humans; D009055:Mouth / Q000000981:diagnostic imaging; D011861:Radiography, Dental / Q000295:instrumentation*