A micro-mechanical evaluation of the effects of die hardener on die stone

Dental Materials Journal
Li Hong HeMichael V Swain

Abstract

The purpose of this study was to investigate the properties of a die hardener penetrated layer and evaluate its protective effects on the surface of die stone. A commercial die hardener (PDQ die hardener, Whipmix corp., USA) was tested on a die stone (GC Fujirock EP die stone, GC Europe, Belgium) and a dental plaster (Dental Stone, United States Gypsum Company, USA). Nanoindentation and micro-scratch tests were performed on both coated and uncoated specimens. The scratch damage was observed by SEM and the penetration depth of die hardener was detected by the affiliated EDX. Upon drying, the die hardener penetrated into the die stone to a depth of 3-5 microm, and deposited a thin film on the surface of die stone. Although the die hardener penetrated layer did not show improved mechanical properties, the die hardener film on the surface did protect the specimens from abrasion damage.

References

Apr 1, 1987·Dental Materials : Official Publication of the Academy of Dental Materials·H E LyonT Patterson
Apr 1, 1974·Australian Dental Journal·S B Bajada, O F Makinson
May 1, 1983·The Journal of Prosthetic Dentistry·H H GhahremannezhadR Weinberg
Jan 1, 1980·The Journal of Prosthetic Dentistry·H FukuiM D Jendresen
Jun 1, 1980·Journal of Dentistry·M E SanadA A Grant
Oct 31, 2003·The Journal of Prosthetic Dentistry·Terry J LindquistEric Knox
Jul 3, 2004·The Journal of Prosthetic Dentistry·Paul E HarrisClark M Stanford
Jul 28, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Spiros ZinelisNikolaos Silikas
Dec 5, 2008·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Rosario PriscoPaolo Vigolo

❮ Previous
Next ❯

Citations

Sep 16, 2014·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Salah KhalafFazal Reza
Feb 9, 2017·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Salah KhalafFazal Reza
Dec 30, 2015·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Arvind TripathiRiti Madhok

❮ 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.