The effects of sterilization on addition silicone impressions in custom and stock metal trays.
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.
Olin
P S
PS
Division of Prosthodontics, University of Minnesota, School of Dentistry, Minneapolis.
Holtan
J R
JR
Breitbach
R S
RS
Rudney
J D
JD
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
D003760:Dental Impression Materials; D012828:Silicones