The continuous brushing acid-etch technique.
The continuous brushing of an acid-etching agent onto the enamel surface of an extracted tooth resulted in a more debris-free surface. SEM photomicrographs showed dissolution of some of the apatite crystals and a reduction in size of the remaining crystals, thus increasing the potential space between them for retention of unfilled composite.
D000134:Acid Etching, Dental / Q000295:instrumentation / Q000379:methods*; D001840:Dental Bonding / Q000379:methods*; D003743:Dental Enamel / Q000648:ultrastructure*; D006801:Humans; D013997:Time Factors