title: Surface roughness of composites and hybrid ionomers.
abstract: This study examined the average surface roughness (Ra, micron) of two composites and three different hybrid ionomers before and after treatment with a 12-fluted finishing bur, two finishing and polishing systems, and a hybrid-ionomer glaze for the hybrid ionomers. The 12-fluted finishing bur produced a roughened surface with all materials compared to the initial surface formed and cured against glass. Both the Enhance Finishing and Polishing System and the Sof-Lex contouring and polishing disks produced smoother surfaces for the composites, Revolution and Charisma, compared to the hybrid ionomers, Fuji II LC, Variglass, and Vitremer. However, the Fuji II LC glaze and the Vitremer glaze created smoother surfaces compared to Revolution finished with the Enhance system. Overall, the Sof-Lex disk system produced the smoothest surfaces for all materials.
authors.affiliation: University of Texas-Houston Health Science Center, Department of General Dentistry, Houston 77030, USA.
authors.forename: W H
authors.initials: WH
authors.lastname: Tate
authors.forename: J M
authors.initials: JM
authors.lastname: Powers
mesh_terms: D000180:Acrylic Resins; D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D003775:Dental Polishing / Q000295:instrumentation / Q000379:methods*; D005899:Glass Ionomer Cements / Q000737:chemistry*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry; D012117:Resins, Synthetic; D013499:Surface Properties
chemical_list: D000180:Acrylic Resins; C084111:Charisma composite resin; D003188:Composite Resins; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; D019279:Resin Cements; D012117:Resins, Synthetic; C102735:Revolution (composite resin); C081982:VariGlass VLC; C084550:Vitremer