title: Effect of a laboratory surfactant on compatibility of type IV dental stones with addition-cured silicone impression materials.
abstract: This study compared the effect of a surfactant on surface detail reproduction between combinations of addition-cured silicone impression materials and type IV stones. Six hundred impressions were made of a ruled test block using; Examix-NDS, Doric-Es Flo-Light, Panasil Contact Plus, Extrude Wash and President Plus Jet. Half of the impressions were treated with a surfactant (Aurofilm). Impressions were poured with type IV dental stones; Silky Rock, Fuji Rock, Suprastone and Vel-Mix and the 20 mu line was scored. A laboratory surfactant (Aurofilm) significantly reduced (P<0.01) compatibility with; (i) Examix-NDS and Suprastone, (ii) Examix-NDS and Velmix, (iii) Extrude Wash and Fuji Rock.
authors.affiliation: Unit of Prosthodontics, UCL Eastman Dental Institute, University College London, London, UK. c.tredwin@eastman.ucl.ac.uk
authors.forename: Christopher Jeremy
authors.initials: CJ
authors.lastname: Tredwin
authors.forename: Michael
authors.initials: M
authors.lastname: Nesbit
authors.forename: Rajeev
authors.initials: R
authors.lastname: Butta
authors.forename: David R
authors.initials: DR
authors.lastname: Moles
mesh_terms: D002133:Calcium Sulfate / Q000737:chemistry*; D003760:Dental Impression Materials / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D006801:Humans; D007754:Laboratories, Dental; D008422:Materials Testing; D012826:Silicone Elastomers / Q000737:chemistry*; D012828:Silicones; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D003760:Dental Impression Materials; D003764:Dental Materials; C102652:Extrude; D012826:Silicone Elastomers; D012828:Silicones; D013501:Surface-Active Agents; C118335:president, silicone impression material; D002133:Calcium Sulfate