Luckily both salt and baking soda had been discovered / invented by the time i got my first tooth brush. And something else that's of historic significance , i won the - Best Teeth - contest, - nearly perfect - at age 12 as a 3rd grader in a class of 200 . And at age 80 i still have them all except 4 wisdom teeth the caused problems as a young man.Some of the old ideas are the best young man My grandparents used to clean their teeth with soot & salt!
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