Abstract
Although it demonstrates great potential in the detection of pathoses and anomalies, panoramic radiography inadequately defines interproximal caries. The addition of bitewings to a panoramic radiographic survey permits a more complete examination of the patient. In this study, the amount of radiation a patient received from a standard intraoral survey (14 films plus two bitewings) was compared with that received from a panoramic exposure supplemented by two bitewings. More radiation was received with the intraoral survey at all 23 sites tested. The means for the panoramic survey and bitewings were statistically smaller (<i>P</i>&spilt;0.001) at all locations except over the mastoids and the eyelids (where the probability was <i>P</i>&spilt;0.05). The results showed that patients received 82% less radiation with the panoramic survey than with the periapical type.
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