Effects of plasma on polyethylene fiber surface for prosthodontic application
| Autor: | Renata Antoun Simão, Fernando Luis Bastian, Joyce R. Araujo, Silvana Marques Miranda Spyrides, Maíra do Prado |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Topography
Materials science Time Factors Dental prosthesis Scanning electron microscope Surface Properties Composite number Mineralogy chemistry.chemical_element Dental bonding Composite Resins chemistry.chemical_compound Plasma Flexural strength Reference Values Materials Testing Chemical analysis Fiber Composite material Argon Pliability General Dentistry Analysis of Variance Photoelectron Spectroscopy Plasma gases Dental Bonding Original Articles Polyethylene Silanes Silane Oxygen lcsh:RK1-715 chemistry lcsh:Dentistry Microscopy Electron Scanning |
| Zdroj: | Journal of Applied Oral Science, Vol 23, Iss 6, Pp 614-622 (2015) Journal of Applied Oral Science Journal of Applied Oral Science, Volume: 23, Issue: 6, Pages: 614-622, Published: DEC 2015 Journal of Applied Oral Science v.23 n.6 2015 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1678-7765 |
| Popis: | Plasma technology has the potential to improve the adherence of fibers to polymeric matrices, and there are prospects for its application in dentistry to reinforce the dental particulate composite. Objectives This study aimed to investigate the effect of oxygen or argon plasma treatment on polyethylene fibers. Material and Methods Connect, Construct, InFibra, and InFibra treated with oxygen or argon plasma were topographically evaluated by scanning electron microscopy (SEM), and chemically by X-ray photoelectron spectroscopy (XPS). For bending analysis, one indirect composite (Signum) was reinforced with polyethylene fiber (Connect, Construct, or InFibra). The InFibra fiber was subjected to three different treatments: (1) single application of silane, (2) oxygen or argon plasma for 1 or 3 min, (3) oxygen or argon plasma and subsequent application of silane. The samples (25x2x2 mm), 6 unreinforced and 60 reinforced with fibers, were subjected to three-point loading tests to obtain their flexural strength and deflection. The results were statistically analyzed with ANOVA and the Bonferroni correction for multiple comparison tests. Results SEM analysis showed that oxygen and argon plasma treatments promote roughness on the polyethylene fiber surface. X-ray photoelectron spectroscopy (XPS) analysis shows that both plasmas were effective in incorporating oxygenated functional groups. Argon or oxygen plasma treatment affected the flexural strength and deflection of a fiber reinforced composite. The application of silane does not promote an increase in the flexural strength of the reinforced composites. Conclusions Oxygen and argon plasma treatments were effective in incorporating oxygenated functional groups and surface roughness. The highest strength values were obtained in the group reinforced with polyethylene fibers treated with oxygen plasma for 3 min. |
| Databáze: | OpenAIRE |
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