Dental OSCE (Objective Structured Clinical Examination) Practice Exam

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What is the characteristic appearance of a Stafne defect on an X-ray?

Radiopaque mass
Radiolucent area
Mixed density lesion
Ground glass appearance

The correct answer is: Radiolucent area

The characteristic appearance of a Stafne defect on an X-ray is a radiolucent area. A Stafne defect, also known as a Stafne bone cavity, typically appears as a well-defined, unilocular radiolucency in the posterior mandible, often associated with the submandibular gland. This radiolucency is usually asymptomatic and represents a defect in the cortical bone where the gland is situated. Its distinct radiolucent appearance is key for identification, as it helps differentiate it from other pathologies that might present in a similar area. The well-defined margins and the localization to an area near the mandible provide a clear indication of its nature, highlighting the importance of thorough imaging and interpretation in dental examinations.