Results 91 to 100 of about 10,152 (224)

Biomechanical behavior of titanium, cobalt-chromium, zirconia, and PEEK frameworks in implant-supported prostheses: a dynamic finite element analysis

BMC Oral Health
Background The mechanical properties of framework materials significantly influence stress distribution and the long-term success of implant-supported prostheses.
Dilara Sahin Hazir, Irem Sozen Yanik, M. Baris Guncu, R. Senay Canay   +3 more
doaj   +1 more source

About the Ageing‐Induced Modifications of Physical‐Chemical and Electrical Properties of Polyimide (PMDA‐ODA) Under Gamma Radiation and High Temperatures

High Voltage, EarlyView.
ABSTRACT This study investigates the effects of radiation‐induced ageing on the physical, chemical, mechanical and electrical properties of Poly[4,4′‐oxydiphenylene‐ pyromellitimide] (PMDA‐ODA) polyimide, a high‐performance insulation material widely used in aerospace applications.
Simone Vincenzo Suraci, Jizhu Jin, Davide Mazza, Davide Fabiani   +3 more
wiley   +1 more source

CNT reinforced PEI and PEEK nanocomposites: A comparison on the thermal and rheological properties

Polymer Testing
Multifunctionality brought by nanomaterials such as carbon nanotubes (CNTs) to high-performance thermoplastics brings several opportunities for tuning the properties in advanced applications.
Fulden Kayginok, Merve Karabal, Alptekin Yıldız, Hulya Cebeci   +3 more
doaj   +1 more source

Finite element analysis of the influence of crown material on the stress distribution of dental implants [PDF]

Kouqiang yixue
Objective To compare the effects of different crown materials on the stress distribution of dental implants by finite element method. Methods A three-dimensional finite element model of implant-supported crown restoration of the right mandibular first ...
ZHUO Yingying, LIN Jie, CHEN Ruizhen, SHEN Jiyuan, LIN Ling, CAI Pingping, ZHENG Zhiqiang
doaj   +1 more source

Additive manufacturing of polyether ether ketone – PEEK parts with surface roughness modification by a laser beam

Journal of Machine Engineering, 2020
The physicochemical properties of polyether ether ketone (PEEK) allow to use this material for prosthetic restorations applied in implant prosthetics. So far, such attempts have been made in the technology of milling rough material solids of this polymer, but the surface quality was unsatisfactory.
Marcin KROLIKOWSKI, Damian PRZESTACKI, Tadeusz CHWALCZUK, Ewa SOBOLEWSKA, Malgorzata TOMASIK   +4 more
openaire   +2 more sources

Prosthetic Outcomes of Implant‐Assisted Maxillary Restorations in the Edentulous Maxilla: A Systematic Review and Meta‐Analysis

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate the prosthetic outcomes of implant‐assisted maxillary full‐arch restorations with ≥ 3 years of follow‐up. Materials and Methods A systematic electronic literature search was conducted in five databases to identify randomised controlled trials and prospective clinical studies involving patients who received full‐arch ...
Ethan Ng, John Rong Hao Tay, Maria Rahmat, Luis Mezzomo, Gil Alcoforado, Nikos Donos   +5 more
wiley   +1 more source

Electrical resistance of CNT-PEEK composites under compression at different temperatures

Nanoscale Research Letters, 2011
Electrically conductive polymers reinforced with carbon nanotubes (CNTs) have generated a great deal of scientific and industrial interest in the last few years. Advanced thermoplastic composites made of three different weight percentages (8%, 9%, and 10%
Mohiuddin Mohammad, Van Hoa Suong
doaj  

Fracture resistance and mode of failure of modified Polyether-ether-ketone versus lithium disilicate endocrowns

BMC Oral Health
Purpose The current study aimed to compare modified Polyether-ether-ketone's fracture resistance and failure mode versus lithium disilicate glass–ceramic endocrowns.
Mohamed G. A. Kharboush, Hesham I. Othman, Mohamed F. Aldamaty, Ahmed M. L. Alameldin   +3 more
doaj   +1 more source

Evidence for short-range magnetic order in the nematic phase of FeSe from anisotropic in-plane magnetostriction and susceptibility measurements

, 2017
The nature of the nematic state in FeSe remains one of the major unsolved mysteries in Fe- based superconductors. Both spin and orbital physics have been invoked to explain the origin of this phase.
Adelmann, Peter, Hardy, Frédéric, He, Mingquan, Meingast, Christoph, Wang, Liran, Wolf, Thomas, Xu, Liping   +6 more
core   +1 more source

Accuracy (Trueness and Precision) of the Calibrated Intraoral Scan Protocol: An In Vitro Comparison of Three Scan Calibrator Designs In an Edentulous Implant Model

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To introduce a universal scan calibrator (SC) and to evaluate its accuracy in the calibrated intraoral scan protocol (CISP) by comparison with two previously published SCs. Materials and Methods Three SCs were evaluated on an edentulous implant model containing six scan bodies (SBs) positioned at the screw‐retained abutment (SRA ...
Shengtao Yang, Chenyi Zhang, Yan Bao, Shuo Wang, Lei Chi, Li Yue, Quan Yuan, Junying Li   +7 more
wiley   +1 more source