Results 41 to 50 of about 133,939 (299)

Evaluating dental zirconia [PDF]

open access: yesDental Materials, 2019
To survey simple contact testing protocols for evaluating the mechanical integrity of zirconia dental ceramics. Specifically, to map vital material property variations and to quantify competing damage modes.Exploratory contact tests are conducted on layer structures representative of zirconia crowns on dentin.Sharp-tip micro- and nano-indentations were
Yu, Zhang, Brian R, Lawn
openaire   +2 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

Fracture simulation for zirconia toughened alumina microstructure [PDF]

open access: yes, 2013
Purpose - The purpose of this paper is to describe finite element modelling for fracture and fatigue behaviour of zirconia toughened alumina microstructures. Design/methodology/approach - A two-dimensional finite element model is developed with an actual
Forest, Bernard   +2 more
core   +7 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

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 ...
Yigit, Bedirhan Savas   +2 more
openaire   +4 more sources

How could mouthwashes affect the color stability and translucency of various types of monolithic zirconia? An in-vitro study.

open access: yesPLoS ONE, 2023
ObjectivesThis study aimed to evaluate the color stability and translucency of various types of monolithic zirconia after immersion in chlorhexidine and Listerine mouthwashes.Materials and methodsThis experimental study was performed on 36 disk-shaped ...
Rashin Giti, Reza Jebal
doaj   +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

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Zirconia Based Dental Biomaterials: Structure, Mechanical Properties, Biocompatibility, Surface Modification, and Applications as Implant

open access: yesFrontiers in Dental Medicine, 2021
Zirconia, with its excellent mechanical properties, chemical stability, biocompatibility, and negligible thermal conductivity, is ideal for dental and orthopedic applications. In addition, the biocompatibility of zirconia has been studied in vivo, and no
Hua Lin, Hua Lin, Cuilan Yin, Anchun Mo
doaj   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

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