Results 151 to 160 of about 6,008 (200)
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Proceedings of the Kabardino-Balkarian State University, 2023
In this work, for the first time, comparative studies of the mechanical properties of polyetheretherketone and its copolymer based on hydroquinone and 4,4'-dihydroxybiphenyl were carried out in a wide range of test temperatures. The main regularities of the behavior of these materials in the temperature range from –65 °С to +250 °С are revealed; that ...
E. V. Rzhevskaya +5 more
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In this work, for the first time, comparative studies of the mechanical properties of polyetheretherketone and its copolymer based on hydroquinone and 4,4'-dihydroxybiphenyl were carried out in a wide range of test temperatures. The main regularities of the behavior of these materials in the temperature range from –65 °С to +250 °С are revealed; that ...
E. V. Rzhevskaya +5 more
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Interlocking polyetheretherketone implant
International Journal of Oral and Maxillofacial Surgery, 2016Polyetheretherketone (PEEK) is a versatile material and is used increasingly for the correction of facial deformity. We have used bespoke implants with an interlocking mechanism to add stability and to facilitate ease of insertion in areas with difficult access.
M, Thomas, N J, Lee
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Calvarial Reconstruction With Polyetheretherketone Implants
Annals of Plastic Surgery, 2009Despite the development of multiple cranial bone substitutes, calvarial reconstruction remains a significant challenge. Although autologous bone is preferred in many cases, its usefulness may be limited by difficulty with contouring, resorption, and donor site availability and morbidity.
Matthew M, Hanasono +2 more
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Polyetheretherketone—cytotoxicity and mutagenicity in vitro
Biomaterials, 2002The results of the incubation of polyetheretherketone (PEEK) fibre material with seven different genotype variants of salmonella bacterium showed with and without an external metabolic activation system (S9) with no mutagenic or cytotoxic activity of the test material. In the so-called "plate incorporation test" in which the PEEK raw material is finely
A, Katzer +4 more
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Tribology of polyetheretherketone
Wear, 1992Abstract A comprehensive discussion of tribological performance of polyetheretherketone is presented. It is based on experimental results obtained in a series of studies carried out in order to assess the potential of the polymer as a material for sliding and rolling contacts.
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Bond strength of lithium disilicate to polyetheretherketone
The Journal of Prosthetic Dentistry, 2022Polyetheretherketone (PEEK) is a high-performance polymer that is increasingly used in dentistry, for example, as a framework for implant-supported fixed complete dentures. One protocol calls for individual lithium disilicate crowns to be cemented on preparation-shaped retentive elements on the framework.
Ryan, Sloan +4 more
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Wear, 1991
The unlubricated sliding wear behavior of non-reinforced polyetheretherketone (PEEK) and a PEEK-carbon fiber (PEEK-Cf) composite was investigated under lightly loaded conditions against mild steel counterfaces. The results showed the occurrence of a relative minimum in wear for the non-reinforced PEEK-mild steel system, resulting from interfacial film ...
T.C. Ovaert, H.S. Cheng
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The unlubricated sliding wear behavior of non-reinforced polyetheretherketone (PEEK) and a PEEK-carbon fiber (PEEK-Cf) composite was investigated under lightly loaded conditions against mild steel counterfaces. The results showed the occurrence of a relative minimum in wear for the non-reinforced PEEK-mild steel system, resulting from interfacial film ...
T.C. Ovaert, H.S. Cheng
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Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2015
AbstractPurpose: The purpose of this study was to evaluate the bone formation capability of polyetheretherketone (PEEK) and carbon fiber‐reinforced PEEK (CFR‐PEEK) implants coated with different titanium and hydroxyapatite plasma‐sprayed layers after 2 and 12 weeks. Methods: In six sheep 108 implants were placed in the pelvis.
Stübinger, Stefan +5 more
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AbstractPurpose: The purpose of this study was to evaluate the bone formation capability of polyetheretherketone (PEEK) and carbon fiber‐reinforced PEEK (CFR‐PEEK) implants coated with different titanium and hydroxyapatite plasma‐sprayed layers after 2 and 12 weeks. Methods: In six sheep 108 implants were placed in the pelvis.
Stübinger, Stefan +5 more
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Polyetheretherketone in Implant Prosthodontics: A Scoping Review
The International Journal of Prosthodontics, 2020To undertake a scoping review of the available research on the application of polyetheretherketone (PEEK) in implant prosthodontics, map the available literature in order to highlight possible gaps in knowledge and, if possible, extract clinical guidelines.The literature on PEEK in implant prosthodontics published through August 2018 was identified ...
Paratelli, Andrea +3 more
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Anisotropy in polyetheretherketone films
Journal of Nanophotonics, 2012Optical measurements reveal the preferential orientation of nanostructures within polymer films, which results from the fabrication process including mechanical and thermal treatments. As the wavelength of the incident light is generally much larger than the characteristic dimensions of the molecular arrangement in semi-crystalline or amorphous ...
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