Results 21 to 30 of about 22,022,044 (223)

Zircônia tetragonal estabilizada por ítria: comportamento mecânico, adesão e longevidade clínica

open access: yesCerâmica, 2013
A zircônia tetragonal policristalina estabilizada por ítria (Y-TZP) vem sendo amplamente empregada na Odontologia como material de infraestrutura (IE) de coroas e próteses parciais fixas devido às suas características mecânicas como alta resistência e ...
Y. D. Belo   +3 more
doaj   +1 more source

A comparison of the tribological behaviour of Y-TZP in tea and coffee under micro-abrasion conditions [PDF]

open access: yes, 2013
The micro-abrasion of Y-TZP, a candidate dental restorative material, was investigated in a range of caffeine-containing solutions which included tea and coffee.
Sharifi, Shayan, Stack, Margaret
core   +2 more sources

Ground Surface of Y-TZP

open access: yesJournal of the Ceramic Association, Japan, 1987
A monoclinic phase is frequently seen on fractured surfaces of yttria stabilized tetragonal ZrO2 polycrystals (Y-TZP). In this study, Y-TZP materials were ground by diamond grinding wheels of different grain sizes and the effects of grinding on the structure in the surface layers was examined from the viewpoint of the grinding mechanism.
KONDO, Yoshihito   +4 more
openaire   +2 more sources

Effect of zirconia substructure thickness on the mechanical properties and adhesion of veneering porcelain

open access: yesBrazilian Journal of Oral Sciences, 2019
Aim: This study investigated the influence of yttrium-stabilized tetragonal zirconia polycrystals (Y-TZP) thickness on fracture load of porcelain-veneered crowns (FL), fracture toughness of porcelain (FT), and the shear bond strength zirconia/porcelain ...
Daniel Lungareze   +4 more
doaj   +1 more source

Reinforcement of Bonding Strength between Dental Y‐TZP and Resin via Nano‐Thin and Conformal SiO2 Films by Atomic Layer Deposition

open access: yesAdvanced Materials Interfaces, 2023
The retentive strength of zirconia crowns is derived from resin cement, and the weak interface between the two is the main reason for their failure. In this work, nano‐thin silica (SiO2) films of precisely controlled thickness are deposited over yttrium ...
Yuxin Yan   +7 more
doaj   +1 more source

Y-TZP, Ce-TZP and as-synthesized Ce-TZP/Al2O3 materials in the development of high loading rate digital light processing formulations

open access: yes, 2021
International audienceY-TZP, Ce-TZP and Ce-TZP/Al2O3 materials are widely investigated in dentistry. Digital Light Processing (DLP) is considered as a breakthrough technology for the dental field to fine print Y-TZP green parts. High loading photocurable
Laucournet, Richard   +4 more
core   +1 more source

Beyond Nature's Blueprint: Macrocyclic Peptides Containing Unnatural Amino Acids in Therapeutic Development

open access: yesAngewandte Chemie, EarlyView.
Strategic incorporation of unnatural amino acids transforms macrocyclic peptides into drug‐like molecules capable of engaging challenging targets. These building blocks enhance stability, permeability, and bioavailability, accelerating the development of next‐generation peptide therapeutics.
Krishna K. Sharma   +5 more
wiley   +2 more sources

The Biocompatibility of Dental Graded Nano-Glass-Zirconia Material After Aging

open access: yesNanoscale Research Letters, 2018
ᅟ A graded nano-glass/zirconia (G/Z) system has been developed via the infiltration of nano-glass into a nano-zirconia surface, which is advantageous for robust core-veneer bonds.
Ting Sun   +5 more
doaj   +1 more source

Low‐Temperature Aging of Y‐TZP Ceramics

open access: yesJournal of the American Ceramic Society, 1999
The isothermal tetragonal‐to‐monoclinic transformation of a 3Y‐TZP ceramic is investigated from 70° to 130°C in water and in steam by X‐ray diffraction and optical interferometer techniques. Aging kinetics followed by X‐ray diffraction are fitted by the Mehl‐Avrami‐Johnson law, suggesting nucleation and growth to be the key mechanisms for ...
Chevalier, Jérôme   +2 more
openaire   +2 more sources

Effect of Alumina Addition to Zirconia Nano-composite on Low Temperature Degradation Process and Biaxial Strength [PDF]

open access: yesJournal of Ultrafine Grained and Nanostructured Materials, 2016
Ceramic dental materials have been considered as alternatives to metals for dental implants application. In this respect, zirconia tetragonal stabilized with %3 yttrium, is of great importance among the ceramic materials for endosseous dental implant ...
Moluk Aivazi   +4 more
doaj   +1 more source

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