A Conversation for A Few Tips on Oral Hygiene
And drink tea.
dElaphant (and Zeppo his dog (and Gummo, Zeppos dog)) - Left my apostrophes at the BBC Started conversation Apr 3, 2001
Tea, especially green tea, strengthens the teeth although it tends to stain them at the same time.
Some cheeses are also known to strengthen the teeth and fight cavities. 
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And drink tea.
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