PMID: 8600014May 1, 1995Paper

Fracture toughness of water-aged resin composite restorative materials

Dental Materials : Official Publication of the Academy of Dental Materials
D J IndraniJ K Harcourt

Abstract

The purpose of this study was to assess the effects of aging experimental dimethacrylate resin composites in water at 37 degrees C for periods up to 6 wk by measuring the variations in fracture toughness (K(c)), elastic modulus (E), fracture energy (G(c)), and water sorption. Six experimental resins were formulated from dimethacrylate resins, and were filled to 86 wt% (ca. 70 vol%) with treated inorganic filler to form six experimental composites. The fracture toughness was determined using a double torsion technique, the elastic modulus was measured in flexure, and the fracture energy was calculated from the fracture toughness and elastic modulus. As a result of aging in water, K(c) and the G(c) increased, and the elastic modulus decreased, but all values approached a plateau near 6 wk. Water sorption also occurred during this period, mainly during the first 2 wk. Variations in the mechanical properties are interpreted as being due to plasticization of the resin matrix by water, which appears to lower the yield stress and increase in the size of the plastic zone ahead of the crack, thereby causing the observed increase in G(c) and K(c). After approximately 6 wk, no further changes in properties occurred.

References

Sep 1, 1976·Journal of Dental Research·M BradenR L Clarke
Jun 1, 1987·Journal of Dental Research·D M Davis, N E Waters
Dec 1, 1988·Dental Materials : Official Publication of the Academy of Dental Materials·V T Truong, M J Tyas
Nov 1, 1986·Biomaterials·M Braden, K W Davy
Sep 1, 1985·Journal of Biomedical Materials Research·M Goldman
Dec 17, 1974·British Dental Journal·T I McCartney, I D Saunders
Nov 1, 1981·Journal of Dental Research·K J Söderholm
Mar 1, 1983·Journal of Biomedical Materials Research·P Lambrechts, G Vanherle
Jan 1, 1982·Journal of Oral Rehabilitation·C H Lloyd, R V Iannetta

❮ Previous
Next ❯

Citations

Jul 18, 2000·Journal of Biomedical Materials Research·S S ScherrerU C Belser
Jan 5, 2002·Dental Materials : Official Publication of the Academy of Dental Materials·Tabassom HooshmandAlireza Keshvad
Jan 25, 2003·Dental Materials : Official Publication of the Academy of Dental Materials·Nicolas MartinAnthony C Fisher
Dec 31, 2003·Dental Materials : Official Publication of the Academy of Dental Materials·Venkata S NagarajanVan P Thompson
Feb 11, 1999·Dental Materials : Official Publication of the Academy of Dental Materials·E Asmussen, A Peutzfeldt
Feb 11, 1999·Dental Materials : Official Publication of the Academy of Dental Materials·M Kern, S M Wegner
Jun 12, 2003·Journal of Dentistry·William M PalinRos C Randall
Apr 1, 1997·European Journal of Oral Sciences·A Peutzfeldt
Dec 2, 2009·Journal of Dental Research·H H K XuJ M Antonucci
Jul 25, 2008·Journal of Dental Research·J L Drummond
May 8, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Pascal BéhinMichaël Sadoun
Mar 26, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Jean-François NguyenMichaël Sadoun
Jan 9, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·Stefan RüttermannRalf Janda
Jul 25, 2009·Journal of the Mechanical Behavior of Biomedical Materials·M B ShahJ J Kruzic
Aug 28, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Christophe ChartonPierre Colon
Aug 29, 2012·Australian Dental Journal·M R AzarM F Burrow
Jul 1, 1996·The Journal of Prosthetic Dentistry·E P AllenJ C Kois
Jun 22, 2005·The Journal of the American Dental Association·William Cheung
Feb 4, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·M B ShahJ J Kruzic
Jan 24, 2007·Brazilian Oral Research·Daniela Francisca Gigo CefalyJosé Roberto Pereira Lauris
Jan 23, 2004·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Jong Keun LeeRonald L Sakaguchi
Jan 13, 2019·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Ramtin Sadid-ZadehLorin M Miller
Apr 14, 2020·Clinical, Cosmetic and Investigational Dentistry·Mohamed A QudaihAhmed Mohamed Elmarakby
Mar 1, 2018·Journal of Veterinary Dentistry·Kipp Wingo
Apr 4, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Eman AlbelasySalah H Mahmoud
Mar 15, 2011·Journal of the Mechanical Behavior of Biomedical Materials·J A De SouzaB F Sørensen

❮ 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

Dental Materials : Official Publication of the Academy of Dental Materials
E Asmussen, A Peutzfeldt
Dental Materials : Official Publication of the Academy of Dental Materials
D ZhaoJ L Drummond
Dental Materials : Official Publication of the Academy of Dental Materials
A C QuaasM Kern
© 2021 Meta ULC. All rights reserved