National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

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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?

  1. Acute periradicular abscess

  2. Chronic periradicular abscess

  3. Pulpal necrosis

  4. Dental caries

The correct answer is: Chronic periradicular abscess

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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