Results 161 to 170 of about 1,076 (194)
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Strength and flexibility of lithium disilicate bonded to polyetherketoneketone
The Journal of Prosthetic Dentistry, 2023Polyetherketoneketone (PEKK) is a high-performance polymer gaining popularity in dentistry for the fabrication of crowns, fixed partial dentures, removable partial denture frameworks, and frameworks for implant-supported fixed complete dentures. Despite a lack of performance data, lithium disilicate crowns have been bonded to retentive elements in PEKK
Michelle K. Ruse +3 more
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Mica filled polyetherketoneketones for material extrusion 3D printing
Additive Manufacturing, 2022ABSTRACT Polyetherketoneketone (PEKK) has superior physical properties to most available thermoplastics compatible with material extrusion-based 3D printing. The performance of fused filament fabrication (FFF) compatible PEKK has been detailed primarily as a function of varying the isomer ratios composing the co-polymer structure.
Zachary C. Kennedy +10 more
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Enhanced Antibacterial Ability and Bioactivity of Polyetherketoneketone Modified with LL-37
Langmuir, 2022Polyetherketoneketone (PEKK) is considered to be a potential substitute material for metal bone implants because of its advantageous biocompatibility, chemical stability, and mechanical properties, but clinical application has been severely restricted due to PEKK's lack of antibacterial ability and biological activity.
Yabing Jin +5 more
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Complete denture fabrication with polyetherketoneketone as a framework material: A clinical report
The Journal of Prosthetic Dentistry, 2022This clinical report describes the fabrication of conventional complete dentures with polyetherketoneketone (PEKK) frameworks made with computer-aided design and computer-aided manufacturing (CAD-CAM). No biologic or prosthetic complications were observed at the 1-year follow-up.
Ling, Ding +4 more
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Influence of Surface Conditioning on Bonding Polyetherketoneketone to Dental Ceramic
ECS Journal of Solid State Science and Technology, 2022This study researched the effects of different surface conditioning techniques on the bond strength of polyetherketoneketone (PEKK) with lithium disilicate glass-ceramic material. Total of 105 test specimens were prepared from PEKK discs and randomly distributed into 5 experimental groups (n = 21) to which different surface conditioning techniques were
Gulfem Ergun, Bahar Tekli
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Preparation and properties of bisphenol A polyetherketoneketone based phthalonitrile resins
Journal of Applied Polymer Science, 2023AbstractA promising high temperature phthalonitrile (PN) resin composed of a polyetherketoneketone (PEKK) core bridged by two bisphenol A linkers and end capped with PN groups is presented. This PEKK‐PN resin was characterized via differential scanning calorimetry, thermogravimetric analysis, proton nuclear magnetic resonance spectroscopy, scanning ...
Loren C. Brown +4 more
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Hydroxyapatite whisker-reinforced polyetherketoneketone bone ingrowth scaffolds
Acta Biomaterialia, 2010Hydroxyapatite (HA) whisker-reinforced polyetherketoneketone (PEKK) bone ingrowth scaffolds were prepared and characterized. High levels of porosity (75-90%) and HA whisker reinforcement (0-40 vol.%) were attained using a powder processing approach to mix the HA whiskers, PEKK powder and a NaCl porogen, followed by compression molding at 350-375 ...
Gabriel L, Converse +3 more
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International journal of computerized dentistry, 2023
AIM The aim of the present study was to compare the load bearing capacity of monolithic or bilayered single crowns with zirconia or polyetherketoneketone frameworks designed and fabricated using CAD/CAM systems. MATERIALS AND METHODS Cr-Co-based metal dies (n = 60) were duplicated from an extracted and prepared premolar and then restored with different
Seckin, Özge +2 more
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AIM The aim of the present study was to compare the load bearing capacity of monolithic or bilayered single crowns with zirconia or polyetherketoneketone frameworks designed and fabricated using CAD/CAM systems. MATERIALS AND METHODS Cr-Co-based metal dies (n = 60) were duplicated from an extracted and prepared premolar and then restored with different
Seckin, Özge +2 more
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Preheat Compression Molding for Polyetherketoneketone: Effect of Molecular Mobility
Chinese Journal of Polymer Science, 2021Polyetherketoneketone (PEKK) is a new evolving polymeric material, and is considered as another important member of the polyaryletherketone (PAEK) family in addition to polyetheretherketone (PEEK). Hot compression molding can be used to compact and consolidate the PEKK products, where the temperature and pressure play key roles to affect the molecular ...
Xiao-Hua Zhang +8 more
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Wear of polyetherketoneketones — Influence of titanium dioxide content and antagonistic material
Dental Materials, 2018The aim of this laboratory study was to analyze the influence of titanium dioxide (TiO2) content and antagonistic material on the wear of polyetherketoneketones (PEKKs).Twenty-four disk-shaped specimens of two PEKK materials containing either 10wt% or 20wt% TiO2 particles (P10 and P20) were dynamically loaded in a chewing simulator with 49N and ...
Thomas, Kewekordes +2 more
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