etching(redirected from ECHOPPE)
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the cutting of a hard surface such as metal or glass by a corrosive chemical, usually an acid, in order to create a design.
acid etching etching of dental enamel with an acid in order to roughen the surface, increase retention of resin sealant, and promote mechanical retention.
the cutting of a hard surface, such as metal or glass, by a corrosive chemical, usually an acid, to create a design.
n a process used to decalcify the superficial layers of enamel as a step in the application of sealants or bonding agents in preventive dentistry and orthodontics. The agent of choice is phosphoric acid in concentrations of 30% to 40%.
see acid etch technique.