Characterization of novel silane coatings on titanium implant surfaces
| Autor: | Hendrik Busscher, Jacob de Vries, Jukka Pekka Matinlinna, James K.H. Tsoi |
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| Přispěvatelé: | Man, Biomaterials and Microbes (MBM), Personalized Healthcare Technology (PHT) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Surface Properties silane chemistry.chemical_element surface chemistry Surface finish In Vitro Techniques Microscopy Atomic Force Contact angle chemistry.chemical_compound Coated Materials Biocompatible BOND STRENGTH PURE TITANIUM Materials Testing LUTING CEMENT Surface roughness ROUGHNESS titanium SILICA-COATED TITANIUM COUPLING AGENTS Composite material Dental Implants implant surface Silanes Photoelectron Spectroscopy Adhesion FREE-ENERGY Silane Surface energy RESIN chemistry BACTERIAL ADHESION Oral Surgery SYSTEM Titanium biomaterials |
| Zdroj: | CLINICAL ORAL IMPLANTS RESEARCH, 24(6), 688-697. Wiley |
| ISSN: | 0905-7161 |
| Popis: | Objectives This in vitro study describes and characterizes a developed novel method to produce coatings on Ti. Hydrophobic coatings on substrates are needed in prosthetic dentistry to promote durable adhesion between luting resin cements and coated Ti surfaces. In implant dentistry the hydrophobic coatings on a Ti implant might be beneficial for osseointegration, preventing bacteria adhesion and for enhancement of resin composite adhesion as well. Materials and methods A silica-coating system, Rocatec™, was used for planar Ti coupons as instructed. After careful rinsing and drying, four experimental silane primers were applied onto silica-coated Ti specimens. The primers were prepared of 3-acryloxypropyltrimethoxysilane + bis-1,2-(triethoxysilyl)ethane (in four concentrations), diluted in acidified ethanol-water. The contact angles, surface free energies, and critical surface tensions were assessed. The chemical compositions of surfaces were analyzed using X-photoelectron spectroscopy. Atomic force microscopy was used to investigate the surface topographies. Non-treated Ti specimens and silanized with a commercial silane primer were used as the controls. Results There were observable differences in the surface free energy (contact angle) and chemical composition on specimens. The silane primers reacted and fully covered Ti surfaces, which produced more hydrophobic coatings, larger contact angles, and lower surface free energy and critical surface tension than controls. At the concentration of 1.0 vol% 3-acryloxypropyltrimethoxysilane and 0.3 vol% bis-1,2-(triethoxysilyl)ethane, the silane blend showed the lowest surface free energy. The silanes would not affect the surface roughness (P > 0.05). Conclusions Novel coatings were successfully developed and optimized. They may produce a hydrophobic surface onto Ti implants without compromising the surface roughness. |
| Databáze: | OpenAIRE |
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