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kate lynn kate lynn
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6 years ago
A significant cause of periodontal disease is ____________.
 a. plaque
  b. calculus
  c. tartar
  d. all of the above
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tiss9889tiss9889
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6 years ago
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kate lynn Author
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6 years ago
Brilliant
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Yesterday
Just got PERFECT on my quiz
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2 hours ago
Thanks
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