title: Surface roughness and morphology of resin composites polished with two-step polishing systems.
abstract: The purpose of this study was to investigate surface roughness (Ra) and morphology of supra-nanofilled [Estelite Omega (EO), Estelite ∑ Quick (EQ)], micro-hybrid [Esthet.X HD (EHD), G-aenial (GAE)] and nano-hybrid [Clearfil Majesty Posterior (CMP), Charisma Diamond (CD), Beautifil II (BII)] composites polished with two-step polishing systems [Enhance/PoGo (EP); Venus Supra (VS)]. Composite discs, 30 of each type, were prepared. Each composite group was divided into three subgroups: Mylar (control), EP and VS. Ra was evaluated with profilometer. In each composite group, the control had the lowest Ra. With both polishing systems, EO and EQ had significantly the lowest Ra, whereas CMP and BII had the highest. Except for GAE, CD and BII, the differences in Ra between EP and VS in each composite group were significant, showing smoother surfaces for EP. Supra-nanofilled composites created smoother surfaces than nano-hybrids, and their performance was similar or slightly better than that of micro-hybrids.
authors.affiliation: Department of Restorative Dentistry, Yeditepe University, Faculty of Dentistry.
authors.forename: Esra
authors.initials: E
authors.lastname: Can Say
authors.forename: Haktan
authors.initials: H
authors.lastname: Yurdagüven
authors.forename: Batu Can
authors.initials: BC
authors.lastname: Yaman
authors.forename: Füsun
authors.initials: F
authors.lastname: Özer
mesh_terms: D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D012117:Resins, Synthetic / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D012117:Resins, Synthetic