Acid Etching is the process of using of an acidic chemical substance to strip enamel or dentin off of the tooth to prepare the surface for bonding. Acid etching is the use of an acidic substance to prepare the tooth’s natural enamel for the application of an adhesive. The acid roughens the surface microscopically, increasing retention of resin sealant. Etching of dental enamel with acid removes the smear layer and opens enamel tubules.
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