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Question

Posted on: March 6 2013

How to prepare a phosphoric acid gel of 35-37% for etching the teeth?

Answer

(Delivered by Apoth Ben of the Mierop from the AFT 1990 page 267)
R/Aerosil 6.25 g
methylene blue qs
phosphoric acid OPL 85% 44.05 G
Aqua dest 49.70 g