title: Effect of operator variability on void formation in impressions made with an automixed addition silicone.
abstract: This study examined voids produced in impressions of an automixed addition-reaction silicone. Two operators took the impressions using material dispensed from either intra-oral tips or an impression syringe. The material was also hand-mixed for comparison. There were no differences in the number of voids in the automixed material dispensed using the intra-oral tip or impression syringe. Automixing produced substantially fewer voids than hand-mixing. There was a significant difference in the number of voids in the impressions made by the two operators.
authors.affiliation: Department of Restorative Dentistry, National University of Singapore.
authors.forename: K C
authors.initials: KC
authors.lastname: Lim
authors.forename: Y H
authors.initials: YH
authors.lastname: Chong
authors.forename: G
authors.initials: G
authors.lastname: Soh
mesh_terms: D003760:Dental Impression Materials / Q000737:chemistry*; D003761:Dental Impression Technique / Q000295:instrumentation; D004867:Equipment Design; D008422:Materials Testing / Q000379:methods; D012826:Silicone Elastomers / Q000737:chemistry*; D013499:Surface Properties; D013594:Syringes
chemical_list: D003760:Dental Impression Materials; D012826:Silicone Elastomers