title: Effect of nonthermal plasma treatment on surface chemistry of commercially-pure titanium and shear bond strength to autopolymerizing acrylic resin.
abstract: The effect of nonthermal plasma on the surface characteristics of commercially pure titanium (cp-Ti), and on the shear bond strength between an autopolymerizing acrylic resin and cp-Ti was investigated. A total of 96 discs of cp-Ti were distributed into four groups (n=24): Po (no surface treatment), SB (sandblasting), Po+NTP and SB+NTP (methane plasma). Surface characterization was performed through surface energy, surface roughness, scanning microscopy, energy dispersive spectroscopy, and X-ray diffraction tests. Shear bond strength test was conducted immediately and after thermocycling. Surface treatment affected the surface energy and roughness of cp-Ti discs (P<.001). SEM-EDS showed the presence of the carbide thin film. XRD spectra revealed no crystalline phase changes. The SB+NTP group showed the highest bond strength values (6.76±0.70 MPa). Thermocycling reduced the bond strength of the acrylic resin/cp-Ti interface (P<.05), except for Po group. NTP is an effective treatment option for improving the shear bond strength between both materials.
authors.affiliation: Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Univ. Estadual Paulista - UNESP, Aracatuba, Sao Paulo, Brazil. Electronic address: aljomarvechiatoflo@gmail.com.
authors.forename: Aljomar José
authors.initials: AJ
authors.lastname: Vechiato-Filho
authors.affiliation: Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil.
authors.forename: Isabella
authors.initials: I
authors.lastname: da Silva Vieira Marques
authors.affiliation: Department of Dental Materials and Prosthodontics, Aracatuba Dental School, Univ. Estadual Paulista - UNESP, Aracatuba, Sao Paulo, Brazil.
authors.forename: Daniela Micheline
authors.initials: DM
authors.lastname: Dos Santos
authors.affiliation: Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil.
authors.forename: Adaias Oliveira
authors.initials: AO
authors.lastname: Matos
authors.affiliation: Laboratory of Technological Plasmas (LaPTec), Engineering College, Univ. Estadual Paulista - UNESP, Sorocaba, Sao Paulo, Brazil.
authors.forename: Elidiane Cipriano
authors.initials: EC
authors.lastname: Rangel
authors.affiliation: Laboratory of Technological Plasmas (LaPTec), Engineering College, Univ. Estadual Paulista - UNESP, Sorocaba, Sao Paulo, Brazil.
authors.forename: Nilson Cristino
authors.initials: NC
authors.lastname: da Cruz
authors.affiliation: Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil.
authors.forename: Valentim Adelino Ricardo
authors.initials: VAR
authors.lastname: Barão
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D019279:Resin Cements; D003776:Dental Porcelain; D014025:Titanium
keywords: Adhesion; Glow discharge; Prosthesis; Surface characterization; Titanium