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Localization of paraoral soft tissue calcifications: the known object rule
J O Katz1, R P Langlais, T E Underhill
1Department of Oral Diagnosis, University of Missouri-Kansas City, School of Dentistry, Kansas City.
Oral Surgery, Oral Medicine, and Oral Pathology
|April 1, 1989
Abstract:
The interpretation of panoramic radiographs requires an understanding of the formation of real and ghost images in rotational panoramic radiology. This article illustrates the use of principles of interpretation in panoramic radiology to identify paraoral soft tissue calcifications, which appear as lesions in the third molar-ramus region of the mandible. The known object rule, a variation of the buccal object rule, is presented as an aid in identifying soft tissue calcifications of the region of the head and neck.