Talk:Relative dentin abrasivity

RDA = Relative Dentin Abrasivity
This can be measured using radioactive isotopes, but the RDA index actually stands for Relative Dentin Abrasivity.

http://jada.ada.org/cgi/content/abstract/139/12/1652 —Preceding unsigned comment added by 67.20.217.204 (talk) 12:45, 22 March 2011 (UTC)