Endodontics · single question
A tooth has a negative pulp vitality test and a well-defined periapical radiolucency at the apex, with no significant pain. What is the most likely diagnosis?
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Correct answer: A. Radicular cyst
- A. CORRECT. A non-vital tooth with a well-defined apical radiolucency and minimal symptoms fits a radicular (periapical) cyst.
- B. INCORRECT. Condensing osteitis is a radiopaque reaction, not a radiolucency.
- C. INCORRECT. Cementoblastoma is a radiopaque mass fused to the root, and the tooth is typically vital.
- D. INCORRECT. Sclerosing osteomyelitis produces sclerotic (radiopaque) bone changes.