Results 21 to 30 of about 739 (161)

Biomechanical effects of digitally constructed titanium, modified polyetheretherketone, and polyetherketoneketone subperiosteal implants on atrophied maxilla: a finite element analysis [PDF]

open access: yesBMC Oral Health
Aim This study aimed to evaluate how different combinations of subperiosteal and superstructure framework materials—titanium, modified PEEK, and PEKK—affect stress distribution on bone in atrophic maxillae, using finite element analysis (FEA).
Mohammed A. El-Sawy   +3 more
doaj   +2 more sources

Influence of different polymeric materials of implant and attachment on stress distribution in implant-supported overdentures: a three-dimensional finite element study [PDF]

open access: yesBMC Oral Health
Purpose Investigating high performance thermoplastic polymers as substitutes to titanium alloy, in fabrication of implants and attachments to support mandibular overdenture, aiming to overcome stress shielding effect of titanium alloy implants.
Sherif Elsayed   +4 more
doaj   +2 more sources

Biomechanical Evaluation of Cantilevered 2-Unit Implant-Supported Prostheses: A 3D Finite Element Study [PDF]

open access: yesInternational Dental Journal
Objective: To assess the biomechanical performance of cantilevered 2-unit implant-supported prostheses with zirconia and polyetherketoneketone (PEKK) under 3 loading conditions.
Hatem S. Sadek   +7 more
doaj   +2 more sources

Implantable PEKK/tantalum microparticles composite with improved surface performances for regulating cell behaviors, promoting bone formation and osseointegration

open access: yesBioactive Materials, 2021
Polyetherketoneketone (PEKK) exhibits admirable biocompatibility and mechanical performances but bioinert while tantalum (Ta) possesses excellent osteogenesis and osseointegration but high elastic modulus and density, and processing is too difficult and ...
Xinglong Hu   +8 more
doaj   +1 more source

Parametric Study of PEKK Based Fiber Metal Laminates Used in Aerospace Applications [PDF]

open access: yesEngineering and Technology Journal, 2023
Numerical analyses offer a cost-effective and efficient alternative to experimental investigations, and Finite Element (FE) models have become a popular tool to simulate the behavior of Fiber metal laminates (FMLs) under impact loads. This study verified
Nassier Nassir, R. Birch, A. Haldar
doaj   +1 more source

High Porosity Poly(ether ketone ketone): Influence of Solvents on Foam Properties

open access: yesMacromolecular Materials and Engineering, 2023
Poly(ether ketone ketone) (PEKK) is a semicrystalline high‐performance polymer with exceptional mechanical properties, high continuous operation temperature, and is insoluble in most common solvents.
Dmitrii Rusakov   +2 more
doaj   +1 more source

CRYSTALLISATION STUDIES ON NEAT PEKK AND CARBON FIBRE/PEKK COMPOSITES

open access: yes, 2023
Study of the crystallisation behaviour, morphology, kinetics and modelling of unreinforced PEKK and carbon fibre-PEKK composite.
Helena Pérez-Martín   +4 more
openaire   +1 more source

Reliability of Polyetherketoneketone as Definitive Implant-Supported Bridges in the Posterior Region—An In Vitro Study of the Ultimate Fracture Load and Vertical Marginal Discrepancy after Artificial Aging

open access: yesApplied Sciences, 2022
Purpose: This study aims to investigate the ultimate fractural strength and marginal integrity of a three-unit implant-supported fixed partial denture (FPD) framework fabricated of polyetherketoneketone (PEKK) after simulated five-year clinical aging ...
Surakit Visuttiwattanakorn   +3 more
doaj   +1 more source

Preparation and Characterization of a Polyetherketoneketone/Hydroxyapatite Hybrid for Dental Applications

open access: yesJournal of Functional Biomaterials, 2022
Here, we developed a new synthetic method for the production of a new class of polymeric inorganic hybrid biomaterial that has potential for dental implant applications and, in general, other orthopedic applications owing to its excellent mechanical ...
Wenhsuan Lu   +7 more
doaj   +1 more source

Mechanical performance of graphenex/poly(ether ketone ketone) composite sheets by hot pressing

open access: yesScientific Reports, 2022
Polymer composites are gradually replacing traditional metal materials in the fields of aviation, aerospace, automotive and medicine due to their corrosion resistance, light weight and high strength.
Q. B. Wang   +6 more
doaj   +1 more source

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