Image Interpretation of Periapical Abnormalities

Abstract

Still more of an art than a science, image interpretation relies on both visual and cognitive skills that enable the clinician to make sense of a series of discrete observations. The periapical image shows a moderately well-defined, delicately corticated, radiolucent area superimposed over the roots of the mandibular right second and third molars. Indeed, the identification of normal radiographic appearances is the most elementary step in the interpretive process, requiring the clinician to have an appreciation for a broad range of normal appearances; the so - called range of normal. Some abnormalities may grow to a size where they begin to impinge on the positions of normal anatomic structures like the teeth and their supporting structures or anatomical boundaries. The appearance of an abnormality having an association with the apex of a tooth and/or its supporting structures may indicate derivation of the abnormality from an odontogenic source.