title: Alcohol-containing mouthwashes: effect on composite hardness.
abstract: This study evaluated the effects of alcohol-containing mouthwashes on composite resin hardness. Eighty hybrid composite discs were fabricated and divided into eight equal groups: Listerine, Scope, Viadent, Plax, Lavoris, Clear Choice, and Rembrandt Mouth Refreshing Rinse. Water acted as a control. All of the discs were immersed by group in their respective liquids for two minutes a day over a period of six months. Disc hardness was measured six times at the center and periphery using a Barcol impressor. The baseline values were taken for each disc and compared to the test values at the end of six months. The results of the study indicate that the alcohol content in mouthwashes can affect composite hardness. This softening affect can be directly related to the percentage of alcohol in the mouthwash.
authors.affiliation: New York University College of Dentistry.
authors.forename: B
authors.initials: B
authors.lastname: Penugonda
authors.forename: L
authors.initials: L
authors.lastname: Settembrini
authors.forename: W
authors.initials: W
authors.lastname: Scherer
authors.forename: E
authors.initials: E
authors.lastname: Hittelman
authors.forename: H
authors.initials: H
authors.lastname: Strassler
mesh_terms: D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D006244:Hardness; D008422:Materials Testing; D009067:Mouthwashes / Q000737:chemistry*; D019279:Resin Cements; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D009067:Mouthwashes; D019279:Resin Cements; C073466:Prisma APH; D000431:Ethanol; D017438:Bisphenol A-Glycidyl Methacrylate