title: An in vitro study of a surface wetting agent for addition reaction silicone impressions.
abstract: The aims of this study were to determine whether the use of a topical surfactant (Hydrosystem) reduced the number of air bubbles visible on the surface of polyvinyl siloxane impressions and stone dies. The impressions exhibited a mean of 1.4 +/- 2.1 bubbles when Hydrosystem wetting agent was used, which was significantly less (p < 0.001) than when it was not used (mean 5.5 +/- 4.7 bubbles). Dies prepared with Hydrosystem surfactant contained a mean of 0.4 +/- 0.8 bubbles, which was significantly (p < 0.001) less than when Wax-Mate surface agent was used (mean 3.5 +/- 5.2 bubbles). In conclusion, in vitro use of Hydrosystem surfactant reduced the number of air bubbles on the surface of silicone impressions and stone dies.
authors.affiliation: Department of Conservative Dentistry, King's College School of Medicine and Dentistry, London, England.
authors.forename: P B
authors.initials: PB
authors.lastname: Robinson
authors.forename: S M
authors.initials: SM
authors.lastname: Dunne
authors.forename: B J
authors.initials: BJ
authors.lastname: Millar
mesh_terms: D003760:Dental Impression Materials / Q000737:chemistry*; D003761:Dental Impression Technique; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D006801:Humans; D003765:Models, Dental; D011145:Polyvinyls / Q000737:chemistry; D012828:Silicones / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013499:Surface Properties; D014906:Wetting Agents / Q000737:chemistry*
chemical_list: D003760:Dental Impression Materials; D004129:Dimethylpolysiloxanes; D011145:Polyvinyls; D012828:Silicones; D012833:Siloxanes; D014906:Wetting Agents; C034183:vinyl polysiloxane; C013830:baysilon