Ref LAST years wilderness gathering ( 2011)

[NorthernRaider]

(1 September 2012, 12:28)Prepaday Wrote: Abrasive? Would that not take the enamel off your teeth?

Even your normal shop bought toothypeg whitening toothpaste is based on abrasion, your either scrubbing the muck off your teeth with microscopically fine abrasive, or your burning the stains off along with the enamal with peroxide based tooth whitening pastes. OR BOTH in the same tube, and if you get one with added flouride you may be damaging your liver and kidneys.

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When you go to the dentist for a check up and he says " You have a bit of placque build up and staining" then he romoves it with a high speed tool, that tool is dipped in grinding abrasive paste.