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  Toothy quiz
Updated 17 February 2002, 12.32
Teeth quiz
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Sci/TechGM bacteria could stop tooth decay

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What is the main cause of tooth decay?
  A: Acids from plaque
  B: Too much biting
  C: Too much salt
What is the hard white coating on teeth called?
  A: Ivory
  B: Shell
  C: Enamel
How many teeth, on average, does a snail have?
  A: 25,600
  B: 145
  C: None!
How many types of teeth do humans have?
  A: 2
  B: 3
  C: 4
What are your first teeth called?
  A: Bread teeth
  B: Milk teeth
  C: Coke teeth

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