Principles of radiographic interpretations

Which is NOT true regarding a lesion composed of odontogenic epithelium?

• The epicenter is located coronal to a tooth.

• The epicenter is located within the maxillary antrum.

• The lesion originates within the inferior alveolar nerve canal.

• The lesion is located superior to the inferior alveolar canal.

Which is the initial step in the analysis of radiographic interpretations?

• Localize the abnormality.

• Analyze the internal structure.

• Assess the periphery and shape.

• Formulate a radiographic interpretation.

Which type of lesion does NOT exhibit well-defined borders?

• Sclerotic

• Invasive

• Corticated

• Punched-out

Which material is MOST radiolucent on a radiograph?

• Metal.

• Fluid.

• Enamel.

• Soft tissue.

Which appears MOST radiopaque in an image?

• Pulp

• Enamel

• Bone marrow

• Trabecular bone

An ill-defined lesion margin is described as...

• sclerotic

• blending

• corticated

• punched out

Which term is NOT used to describe the shape of a lesion?

• Circular

• Irregular

• Blending

• Scalloped

Which term describes the internal appearance of a lesion?

• Discoid

• Circular

• Pedunculated

• Mixed density

Mixed radiographic density is NOT a characteristic of...

• septa

• lamina dura

• dystrophic calcification

• abnormal trabecular patterns

Lesions affect the surrounding structures in each way, EXCEPT one. Which is the EXCEPTION?

• Resorption of teeth

• Displacement of teeth

• Thinning of the inferior alveolar canal

• Widening of the periodontal membrane space