Results 11 to 20 of about 1,062 (193)

Morphological, Thermal, and Mechanical Analysis of 3D Printed Polyetherketoneketone (PEKK) and PEKK‐Hydroxyapatite Composites: Establishing the Reference Enthalpy of Fusion for Crystalline PEKK 7003

Macromolecular Materials and Engineering
The enthalpy of fusion (ΔHf) is a critical parameter for determining the degree of crystallinity in semi‐crystalline polymers such as polyetherketoneketone (PEKK).
Frances Hasson, Krzysztof Rodzeń, Joanna Ward, Alistair McIlhagger, Eiméar O'Donnell, Adrian Boyd   +5 more
doaj   +2 more sources

Assessing the role of PEKK implant material on cytotoxicity, inflammatory response, and molecular interactions with pro-inflammatory cytokines: An in-vitro and in-silico study [PDF]

Journal of Oral Biology and Craniofacial Research
Introduction: and aim: Due to its excellent mechanical strength and biocompatibility, Polyetherketoneketone (PEKK) is emerging as a potential substitute for titanium in dental implant applications.
Amrutha Shenoy, Subhabrata Maiti, Selvaraj Jayaram, Pradeep kumar yadalam, Jessy Paulraj   +4 more
doaj   +2 more sources

To evaluate and compare the effect of various surface treatment modalities on shear bond strength of composite to polyetherketoneketone and SEM analysis: An In vitro study [PDF]

Contemporary Clinical Dentistry, 2023
Context: It is a challenge to bond resin materials with polyetherketoneketone (PEKK). To increase the bond strength, surface treatments using chemical adhesion, mechanical adhesion, or a combination of both can be used. Aims: The objective of the present
Arushi Chopra, Roma Goswami, Deepesh Saxena, Anshul Trivedi   +3 more
doaj   +2 more sources

Stereomicroscope-Based in Vitro Study Evaluating the Marginal and Internal Fit of PEEK and PEKK Crowns

Journal of Pharmacy and Bioallied Sciences
PurposeThe aim of the in vitro study was to compare the internal merge and marginal perfection of polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) crowns under a stereomicroscope.
Chandramohan Giri, Soundar Joephin, Shankar Kamala, Missier Mary Sheloni, Hines Allen Jim   +4 more
doaj   +2 more sources

Thermal conductivity and diffusivity of carbon‐reinforced polyetherketoneketone composites [PDF]

Journal of Applied Polymer Science, 2019
ABSTRACTHeat transfer properties play an important role in processing of polyetherketoneketone (PEKK)/carbon fiber (CF) composites. Accordingly, thermal conductivity and diffusivity of PEKK, PEKK/glassy carbon (GC), and PEKK/CF composites have been studied. Observed increase in conductivity and diffusivity with carbon filler addition was analyzed using
Coulson, Mike, Dantras, Eric, Olivier, Philippe, Gleizes, Nathalie, Lacabanne, Colette   +4 more
openaire   +8 more sources

Marginal gap of printed, milled, and heat-pressed two-piece polyetheretherketone abutments before and after thermal cycling, and their pull-off bond strength after thermal cycling [PDF]

Journal of Prosthodontics, EarlyView.
Purpose: To evaluate the marginal gap of two-piece polyetheretherketone (PEEK) abutments fabricated with different methods, before and after thermal cycling, while also focusing on their pull-off bond strength.
Bulucu, Naime Bilinc, Demirel, Muenir, Donmez, Mustafa Borga, Kanpalta, Burcu, Schulnig, Sandra, Spintzyk, Sebastian, Tuerksayar, Almira Ada Diken   +6 more
core   +2 more sources

Sulfonated polyether ketone ketone (SPEKK) implant as an alternative to titanium implant-in vivo study on Wistar Albino rat mandible [PDF]

BMC Oral Health
Background Titanium is commonly used for dental implants due to its high biocompatibility and durability. However, concerns about metal ion release and aesthetic limitations in certain tissue biotypes have driven the search for alternative materials ...
Bhavini Nahata, Subhabrata Maiti, Mohanraj Karthik Ganesh, Artak Heboyan, Lokesh Sai, Jessy Paulraj   +5 more
doaj   +2 more sources

Advanced 3D Printing of Polyetherketoneketone Hydroxyapatite Composites via Fused Filament Fabrication with Increased Interlayer Connection [PDF]

Materials (Basel)
Additively manufactured implants, surgical guides, and medical devices that would have direct contact with the human body require predictable behaviour when stress is applied during their standard operation. Products built with Fused Filament Fabrication
Rodzeń K, O’Donnell E, Hasson F, McIlhagger A, Meenan B, Ullah J, Strachota B, Strachota A, Duffy S, Boyd A.   +9 more
europepmc   +3 more sources

Sternal Reconstruction Utilizing a Custom 3D-Printed Polyetherketoneketone Implant

Annals of Thoracic Surgery Short Reports
Anterior chest wall reconstruction after sternal resection remains challenging. Implants and prosthetic reconstructive materials should offer ample tissue ingrowth, maintain structural integrity and physiology, minimize infection risk, and maximize ...
Eric Lisznyai, MD, Haroutioun Boyajian, MD, Ikenna Okereke, MD, Deangelo Ferguson, MD, Aamir Siddiqui, MD, Andrew M. Popoff, MD   +5 more
doaj   +2 more sources

Manganese-Catalyzed Synthesis of Polyketones Using Hydrogen-Borrowing Approach. [PDF]

ACS Catal
We report here a method of making polyketones from the coupling of diketones and diols using a manganese pincer complex. The methodology allows us to access various polyketones (polyarylalkylketone) containing aryl, alkyl, and ether functionalities ...
Kulyabin PS, Magdysyuk OV, Naden AB, Dawson DM, Pancholi K, Walker M, Vassalli M, Kumar A.   +7 more
europepmc   +6 more sources