title: Surface roughness of composite resins after finishing and polishing.
abstract: This study evaluated the effect of surface finishing methods on the average surface roughness of resin composites. Seven composites and two polishing systems were used. One hundred and twenty-six conical specimens of each material were prepared in stainless steel molds against a polyester strip. Forty-two of them remained intact and were used as controls. Each half of the remaining samples was polished with either diamond burs or diamond burs + aluminum oxide discs. The results showed no statistical difference in average surface roughness (Ra, microm) between the polyester strip and aluminum oxide discs (p > 0.05). However, finishing with diamond burs showed a statistically higher average roughness for all composites (p < 0.05). Statistical differences were detected among materials (p < 0.05) in the use of diamond burs.
authors.affiliation: School of Dentistry University of São Paulo, Bauru, SP, Brazil. hnagem@usp.br
authors.forename: Halim
authors.initials: H
authors.lastname: Nagem Filho
authors.forename: Maria Tereza Fortes Soares
authors.initials: MT
authors.lastname: D'Azevedo
authors.forename: Haline Drumond
authors.initials: HD
authors.lastname: Nagem
authors.forename: Fernanda Pátaro
authors.initials: FP
authors.lastname: Marsola
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003775:Dental Polishing / Q000295:instrumentation; D018130:Diamond / Q000737:chemistry; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D011091:Polyesters / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013193:Stainless Steel / Q000737:chemistry; D013223:Statistics as Topic; D013499:Surface Properties; D013729:Terpenes / Q000737:chemistry
chemical_list: C406265:Alert composite resin; D003188:Composite Resins; C421785:Definite composite resin; C444701:Filtek Z250; D008689:Methacrylates; D011091:Polyesters; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D012833:Siloxanes; C113049:Solitaire composite resin; C403464:SureFil packable composite; D013729:Terpenes; C029824:urethane dimethacrylate luting resin; D013193:Stainless Steel; C020946:triethylene glycol dimethacrylate; C041979:2,2-bis-(4-(2-methacryloxyethoxy)phenyl)propane; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; D018130:Diamond; D000537:Aluminum Oxide