Practice Quiz

ADA NBDE National Board Dental Part II

Category - NBDE II

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When dental plaque sticks firmly to the tooth’s surface, what occurs?
  1. Carious lesions
  2. Cavities
  3. Saliva increases
  4. Fluoridation
Explanation
Answer: A - When dental plaque sticks firmly to the tooth’s surface carious lesions occur. Carious lesions are due to bacteria ingestion of refined carbohydrates. The byproduct of these carbohydrates increases acid levels that cause a decrease in pH levels. Fluoridation aids saliva, the body’s natural defense against carious lesions.
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