title: The effects of sterilization on addition silicone impressions in custom and stock metal trays.
abstract: Five groups of addition silicone impressions (four made in custom autopolymerizing acrylic resin trays and one in stock metal rim-lock trays) were made of a stainless-steel master die. The first group (control group) was not sterilized. The second group was sterilized in an ethylene oxide gas autoclave, the third group in a steam autoclave, and the fourth and fifth groups by immersion for 12 hours in 2% glutaraldehyde. Casts made from each sterilization group were found to be significantly different from control impressions by multivariate analysis of variance and should not be used to fabricate prostheses.
authors.affiliation: Division of Prosthodontics, University of Minnesota, School of Dentistry, Minneapolis.
authors.forename: P S
authors.initials: PS
authors.lastname: Olin
authors.forename: J R
authors.initials: JR
authors.lastname: Holtan
authors.forename: R S
authors.initials: RS
authors.lastname: Breitbach
authors.forename: J D
authors.initials: JD
authors.lastname: Rudney
mesh_terms: D003760:Dental Impression Materials / Q000737:chemistry*; D003761:Dental Impression Technique; D003762:Dental Instruments; D006801:Humans; D015999:Multivariate Analysis; D012828:Silicones; D013242:Sterilization / Q000295:instrumentation* / Q000379:methods
chemical_list: D003760:Dental Impression Materials; D012828:Silicones