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|Type:||Artigo de periódico|
|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. © 2015 Elsevier B.V.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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