Results 41 to 50 of about 162,305 (348)

Evaluation of translucency of monolithic zirconia and framework zirconia materials

open access: yesThe Journal of Advanced Prosthodontics, 2016
The opacity of zirconia is an esthetic disadvantage that hinders achieving natural and shade-matched restorations. The aim of this study was to evaluate the translucency of non-colored and colored framework zirconia and monolithic zirconia.The three groups tested were: non-colored framework zirconia, colored framework zirconia with the A3 shade ...
İlkin Tuncel   +2 more
openaire   +5 more sources

Characterization of Fe implanted yttria-stabilized zirconia by cyclic voltammetry [PDF]

open access: yes, 1992
The technique of cyclic voltammetry has been applied to study reduction and oxidation phenomena which are observed at low oxygen partial pressures during steady state current-overpotential measurements of the Au, O2(g)/Fe implanted yttria-stabilized ...
Burggraaf, A.J., Hassel, B.A. van
core   +2 more sources

Differential Healing Patterns of Mucosal Seal on Zirconia and Titanium Implant

open access: yesFrontiers in Physiology, 2019
Zirconia implants have become an alternative to titanium implants due to several advantages. The zirconia implant is relatively esthetic and highly resistant to bacteria.
Dong-Joon Lee   +6 more
doaj   +1 more source

Effect of ion implantation doping on electrical properties of yttria-stabilized zirconia thin films [PDF]

open access: yes, 1992
The change in conductivity of Fe and Ti implanted rf-sputtered layers of yttria-stabilized zirconia (YSZ) was studied as a function of the temperature (400–800°C) and oxygen partial pressure. In an oxidized state and in the temperature range of 400–600°C,
Burggraaf, A.J., Hassel, B.A. van
core   +3 more sources

Translucency evaluation of an ultra-translucent monolithic zirconia and a super translucent multilayer zirconia: a pilot study on the thickness effect

open access: yesAnnals of Medicine, 2021
Introduction The increasing application of zirconia as an aesthetic material has led to an evolution with improvement on its optical properties [1]. Nowadays, zirconia presents a compatible translucency with natural teeth.
Ana Filipa Pereira   +5 more
doaj   +1 more source

Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings [PDF]

open access: yes, 2011
The effect of doping on the structural, morphological and thermal properties of ZrO2–XO1.5 (X=Y, La, Sm, Er) solid solutions for thermal barrier (TBC) applications was investigated. Oxide powders of various compositions from 9.7 to 40 mol% XO1.5 (X=Y, La,
Ansart, Florence   +4 more
core   +1 more source

Electrochemical blackening of yttria-stabilized zirconia : morphological instability of the moving reaction front [PDF]

open access: yes, 1999
Electrochemical reduction was performed on both polycrystals of calcia-stabilized zirconia (CSY) and single crystals of yttria-stabilized zirconia (YSZ) at 500°C. A glass-encapsulation was used to prevent access of molecular oxygen from the gas phase and
Janek, Jürgen, Korte, Carsten
core   +1 more source

Femtosecond Laser Irradiation to Zirconia Prior to Calcium Phosphate Coating Enhances Osteointegration of Zirconia in Rabbits

open access: yesJournal of Functional Biomaterials
Calcium phosphate (CaP) coating of zirconia and zirconia-based implants is challenging, due to their chemical instability and susceptibility to thermal and mechanical impacts.
Hirotaka Mutsuzaki   +4 more
doaj   +1 more source

CAD/CAM Zirconia vs. slip-cast glass-infiltrated Alumina/Zirconia all-ceramic crowns: 2-year results of a randomized controlled clinical trial

open access: yesJournal of Applied Oral Science, 2009
The aim of this randomized controlled clinical trial was to compare the early clinical outcome of slip-cast glass-infiltrated Alumina/Zirconia and CAD/CAM Zirconia all-ceramic crowns.
Murat Cavit Çehreli   +2 more
doaj   +1 more source

Zirconia Ceramics

open access: yesActa Medica (Hradec Kralove, Czech Republic)
Zirconia ceramics have become popular among other dental ceramics thanks to their biological, mechanical, optical, and aesthetic properties. CAD/CAM (computer-aided design/ computer-aided manufacturing) technology improvement has played a vital role in the increased popularity of zirconia ceramics; easy computer manipulation significantly expanded the ...
Bedirhan Savas Yigit   +2 more
openaire   +3 more sources

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