title: 99mTc-MDP adsorption of some dental alloys with varying surface roughness: effect of oral environment.
abstract: The purpose of this study was to measure the surface characteristics of some dental alloys by 99mTc-MDP adsorption and to investigate the effect of oral environment on 99mTc-MDP adsorption. Sample discs of five different dental alloys were prepared. The surfaces were sandblasted, ground with sandpaper, polished and electrolysed in succession. The surface roughness of each disc was measured by the use of a profilometre. Contact angles (theta) of the surfaces were also measured. 99mTc-MDP adsorption of the discs was determined both prior to and after 2 h of exposure to the oral environment. Our results indicated that the discs sandblasted and electrolysed had the maximum surface roughness and those polished the minimum surface roughness. The 99mTc-MDP adsorption showed variation according to the type of alloy used and its surface roughness prior to exposure to the oral environment. After exposure 99mTc-MDP adsorption was essentially the same for all the alloys.
authors.forename: N
authors.initials: N
authors.lastname: Anil
authors.forename: M
authors.initials: M
authors.lastname: Mutlu
authors.forename: M T
authors.initials: MT
authors.lastname: Ercan
authors.forename: C
authors.initials: C
authors.lastname: Cekiç
mesh_terms: D000327:Adsorption; D000328:Adult; D002858:Chromium Alloys; D003775:Dental Polishing / Q000379:methods*; D006047:Gold Alloys; D006801:Humans; D008297:Male; D009055:Mouth / Q000502:physiology; D013499:Surface Properties; D013669:Technetium Tc 99m Medronate; D014465:Ultrasonics
chemical_list: D002858:Chromium Alloys; D006047:Gold Alloys; D013669:Technetium Tc 99m Medronate