Ageing kinetics and strength of airborne-particle abraded 3Y-TZP ceramics

Dental Materials : Official Publication of the Academy of Dental Materials
Jasna CotičAndraž Kocjan

Abstract

The combined effects of alumina airborne-particle abrasion and prolonged in vitro ageing on the flexural strength of 3Y-TZP ceramic have been studied. The aim was to identify the different effects on the surface and subsurface regions that govern the performance of this popular bioceramic known for its susceptibility to low-temperature degradation (LTD). As-sintered or airborne-particle abraded 3Y-TZP discs were subjected to ageing at 134°C for up to 480h. Biaxial flexural strength was measured and the relative amount of monoclinic phase determined using X-ray diffraction. The transformed zone depth (TZD) was observed on cross-sections with scanning electron microscopy coupled with a focused ion beam. Segmented linear regression was used to analyze the flexural strength and TZD as functions of the ageing time. A two-step linear ageing kinetics was detected in airborne-particle abraded specimens, reflecting the different microstructures through which the LTD proceeds into the bulk. A 10μm thick altered zone under the abraded surface was involved in both the surface strengthening and the increased ageing resistance. When the zone was annihilated by the LTD, the strength of the ceramic specimens and the speed of LTD returned to th...Continue Reading

References

Jun 23, 2000·Dental Materials : Official Publication of the Academy of Dental Materials·T KosmacL Marion
Sep 7, 2005·Biomaterials·Jérôme Chevalier
Jul 31, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Isabelle Denry, J Robert Kelly
Sep 22, 2010·Acta Biomaterialia·Maria Cattani-LorenteH W Anselm Wiskott
Dec 6, 2011·Acta Biomaterialia·Philipp KohorstChristoph Hübsch
Mar 30, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Ravi Kiran ChintapalliMarc Anglada
Oct 2, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Ravi Kiran ChintapalliMarc Anglada
Oct 12, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Michael V Swain
May 2, 2014·Journal of Materials Science. Materials in Medicine·Cedomir OblakTomaz Kosmac
Jul 26, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Matthias Kern
Oct 4, 2014·The Journal of Prosthetic Dentistry·Brian D FlinnLloyd A Mancl
Jan 23, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Jasna CotičTomaž Kosmač
Apr 17, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Iana L AurélioFabio Z M Soares
Sep 27, 2016·The Journal of Prosthetic Dentistry·Brian D FlinnTuesday Kuykendall

❮ Previous
Next ❯

Citations

Dec 19, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Andraž KocjanPeter Jevnikar
Dec 31, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Jasna CotičPeter Jevnikar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved