Effect of loading and syringing on void formation in automixed addition silicone elastomers.
The effect of loading and syringing on void formation in five automixed addition silicones was evaluated by determining the voids created in the first and second halves of material loaded and dispensed from a metal syringe. Impressions were made of a model with six stainless-steel cylinders. The voids were counted at a predetermined site on 3 separate days using a binocular microscope at x 7 magnification. Automixed addition silicones did not confirm the 'last out-fewer bubbles' phenomenon and specific loading and syringing technique did not appear to have a consistent effect on void formation in automixed elastomers.
Department of Restorative Dentistry, National University of Singapore.
Y H
YH
Chong
G
G
Soh
K C
KC
Lim
D003760:Dental Impression Materials / Q000737:chemistry* / Q000592:standards; D003761:Dental Impression Technique / Q000295:instrumentation; D006801:Humans; D008422:Materials Testing / Q000379:methods / Q000706:statistics & numerical data; D011897:Random Allocation; D012826:Silicone Elastomers / Q000737:chemistry* / Q000592:standards
D003760:Dental Impression Materials; D012826:Silicone Elastomers