title: Radiopacity of elastomeric impression materials.
abstract: The purpose of this study was to measure and classify the radiopacity of various elastomeric impression materials available on the open market and to compare their appearance in radiographs of the oral tissues. In order to measure and classify their radiopacity, twenty-eight specimens of various materials were placed and exposed on film together with an aluminium stepwedge. A dummy head was used to investigate the radiographic density of the above specimens in comparison with that of simulated oral tissues.
authors.affiliation: School of Dentistry, University of Thessaloniki, Greece.
authors.forename: N
authors.initials: N
authors.lastname: Parissis
authors.forename: D
authors.initials: D
authors.lastname: Iakovidis
authors.forename: S
authors.initials: S
authors.lastname: Chirakis
authors.forename: A
authors.initials: A
authors.lastname: Tsirlis
mesh_terms: D015502:Absorptiometry, Photon; D003287:Contrast Media; D003760:Dental Impression Materials / Q000737:chemistry*; D006801:Humans; D008961:Models, Structural; D009055:Mouth / Q000000981:diagnostic imaging*; D012408:Rubber / Q000737:chemistry*; D012826:Silicone Elastomers / Q000737:chemistry; D013438:Sulfhydryl Compounds / Q000737:chemistry
chemical_list: D003287:Contrast Media; D003760:Dental Impression Materials; D012826:Silicone Elastomers; D013438:Sulfhydryl Compounds; D012408:Rubber