acid etching
noun
variants:
also acid-etching
Medical Definition of acid etching
: the application of an acid to a tooth surface so that the enamel is roughened in order to allow for improved adhesion of bonding material (such as resin)
Acid etching of enamel should be carried out using a 30-40% solution of phosphoric acid in gel form … — Stewart Barclay, in Master Dentistry, Volume 2, 2003