PMID: 11314144Apr 21, 2001Paper

Effect of etching agent on dentinal adhesive interface in primary teeth

The Journal of Clinical Pediatric Dentistry
R M RontaniM F De Goes

Abstract

The purpose of this study was to evaluate in vitro the effect of a phosphoric acid etchant containing benzalkonium chloride on the dentin/adhesive interface in primary teeth. The teeth had caries lesions involving enamel and dentin, and were stored in a 2% glutaraldehyde solution for 2-4 hours. The teeth were divided into five groups of five teeth each: Group 1: Etching for 15 seconds with a semigel 32% phosphoric acid containing benzalkonium chloride; Group 2: Etching with 35% phosphoric acid for 15 seconds; Group 3: Treated with a 2% benzalkonium chloride in a alcoholic solution; Group 4: Conditioned with a 3% benzalkonium chloride in a alcoholic solution (control group); Group 5: The teeth were untreated (control group). The carious tissue was removed with a carbide bur in high-speed and copious air water spray. The overall dimensions and depths of the cavities were determined by the carious tissue removal. After the caries lesion was removed, the cavity was cleaned with an air-water spray and the dentin was treated according to the specific group. The teeth were then restored with Scotchbond Multi-Purpose Plus (3M, St. Paul, MN) and Z-100 resin-based composite (3M, St. Paul, MN) according to the manufacturer's instructions....Continue Reading

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