Characterization of third-body media particles and their effect on in vitro composite wear.

Dental Materials : Official Publication of the Academy of Dental Materials
Nathaniel C LawsonJohn O Burgess

Abstract

The purpose of this study was to compare four medium particles currently used for in vitro composite wear testing (glass and PMMA beads and millet and poppy seeds). Particles were prepared as described in previous wear studies. Hardness of medium particles was measured with a nano-indentor, particle size was measured with a particle size analyzer, and the particle form was determined with light microscopy and image analysis software. Composite wear was measured using each type of medium and water in the Alabama wear testing device. Four dental composites were compared: a hybrid (Z100), flowable microhybrid (Estelite Flow Quick), micromatrix (Esthet-X), and nano-filled (Filtek Supreme Plus). The test ran for 100,000 cycles at 1.2 Hz with 70 N force by a steel antagonist. Volumetric wear was measured by non-contact profilometry. A two-way analysis of variance (ANOVA) and Tukey's test was used to compare both materials and media. Hardness values (GPa) of the particles are (glass, millet, PMMA, and poppy, respectively): 1.310(0.150), 0.279(0.170), 0.279(0.095), and 0.226(0.146). Average particle sizes (μm) are (glass, millet, PMMA, and poppy, respectively): 88.35(8.24), 8.07(4.05), 28.95(8.74), and 14.08(7.20). Glass and PMMA beads...Continue Reading

References

Sep 1, 1992·Dental Materials : Official Publication of the Academy of Dental Materials·S C BayneH O Heymann
Jan 1, 1992·Journal of Oral Rehabilitation·N SatouM Yamaki
May 1, 1986·Journal of Dental Research·A J De GeeC L Davidson
Jul 1, 1996·Dental Materials : Official Publication of the Academy of Dental Materials·J R Condon, J L Ferracane
Jan 1, 1997·Journal of Biomedical Materials Research·J R Condon, J L Ferracane
Sep 24, 1999·The Journal of the American Dental Association·K F Leinfelder, S Suzuki
Mar 16, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·S D HeintzeV Rousson
Nov 10, 2005·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·James L Drummond
Mar 28, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Jack L Ferracane
Apr 1, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·S D Heintze
May 23, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Paul LambrechtsBart Van Meerbeek
Oct 30, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Tomotaro NiheiKarl-Heinz Kunzelmann
Nov 1, 2008·Dental Materials Journal·Kiyoshi Kakuta, Hideo Ogura
Oct 5, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·S D HeintzeV Rousson

❮ Previous
Next ❯

Citations

Feb 5, 2016·Dental Materials Journal·Koichi ShinkaiMasaya Suzuki
Oct 23, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Natthavoot KoottathapeWerner J Finger
Nov 14, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Natthavoot KoottathapeWerner J Finger
Aug 7, 2014·The Journal of Contemporary Dental Practice·Naohiko IwasakiKeiichi Sasaki

❮ 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.

Related Papers

Journal of the Mechanical Behavior of Biomedical Materials
Natthavoot KoottathapeW Finger
Journal of the Mechanical Behavior of Biomedical Materials
Sebastian HahnelMartin Rosentritt
Dental Materials : Official Publication of the Academy of Dental Materials
S D HeintzeM Ozcan
Dental Materials : Official Publication of the Academy of Dental Materials
Natthavoot KoottathapeW Finger
Journal of Biomedical Materials Research. Part B, Applied Biomaterials
L MusanjeL L Ferracane
© 2021 Meta ULC. All rights reserved