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National Dental Examining Board Of Canada (NDEB) Practice Exam

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What is the likely diagnosis for a patient with 3 weeks history of prolonged tooth pain to hot and cold, which changed to moderate pain on biting with a dull spontaneous ache relieved by cold?
Correct Answer:
Chronic periradicular abscess
Explanation:
This is because an acute periradicular abscess typically presents with severe pain to hot and cold that is constant, while chronic periradicular abscess causes moderate pain on biting with a gradual onset. Additionally, pulpal necrosis would present with no relief from cold, and dental caries would most likely have cavities present rather than just prolonged tooth pain.

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