1. An adult human normally has.................. permanent teeth (excluding the wisdom teeth).
a) 20 b) 28 c) 32
2. What is the most common important ingredient in a toothpaste that is used to combat tooth decay?
a) Fluoride b) Salt c) Mint
3. "It is recommended NOT to brush teeth immediately after meal"
a) true b) false
4. Regular dental visit for dental check - ups should be carried out every ....................... months.
a) 2 b) 4 c) 6
5. Which of the following can cause tooth decay?
a) Chocolate b) Spinach c) Water
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