Competitive light absorbers in photoactive dental resin-based materials

Dental Materials : Official Publication of the Academy of Dental Materials
M HadisW M Palin

Abstract

The absorbance profile of photoinitiators prior to, during and following polymerization of light curable resin-based materials will have a significant effect on the cure and color properties of the final material. So-called "colorless" photoinitiators are used in some light-activated resin-based composite restorative materials to lessen the yellowing effect of camphoroquinone (CQ) in order to improve the esthetic quality of dental restorations. This work characterizes absorption properties of commonly used photoinitiators, an acylphosphine oxide (TPO) and CQ, and assesses their influence on material discoloration. Dimethacrylate resin formulations contained low (0.0134 mol/dm(3)), intermediate (0.0405 mol/dm(3)) or high (0.0678 mol/dm(3)) concentrations of the photoinitiators and the inhibitor, butylated hydroxytoluene (BHT) at 0, 0.1 or 0.2% by mass. Disc shaped specimens (n = 3) of each resin were polymerized for 60s using a halogen light curing unit. Dynamic measurements of photoinitiator absorption, polymer conversion and reaction temperature were performed. A spectrophotometer was used to measure the color change before and after cure. GLM three-way analysis of variance revealed significant differences (p<0.001), where pho...Continue Reading

References

May 1, 1995·Journal of Oral Rehabilitation·L Harrington, H J Wilson
Jan 1, 1996·Free Radical Biology & Medicine·C R LambertT G Truscott
Nov 21, 1998·Dental Materials : Official Publication of the Academy of Dental Materials·F A RueggebergP E Lockwood
Jan 1, 1988·Journal of Dental Research·M TairaM Yamaki
Jan 28, 2004·Journal of Esthetic Dentistry·J W Stansbury
Feb 1, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Wolfgang WeinmannRainer Guggenberger
Mar 9, 2005·Journal of Materials Science. Materials in Medicine·N Emami, K-J M Söderholm
Aug 16, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Delphine Truffier-BoutryGaëtane Leloup
Nov 18, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Miguel G NeumannIvo C Corrêa
Jul 25, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Yin-Chu ChenScott A Prahl
Aug 18, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·A OgunyinkaP M Marquis
Jan 6, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Hugo H AlvimJose R C Saad
Oct 4, 2007·Operative Dentistry·Martha Göel BrackettFrederick A Rueggeberg
Dec 22, 2007·Journal of Dental Research·A C ShortallP Burtscher
Mar 8, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Luis Felipe J SchneiderJack L Ferracane
Jun 11, 2008·Dental Materials Journal·Nicoleta Ilie, Reinhard Hickel
Mar 31, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·L MusanjeR L Sakaguchi
Apr 18, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·Dong-Hoon Shin, H Ralph Rawls
Sep 19, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·Silvana AsmusenClaudia Vallo
Mar 17, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·M RosentrittW M Palin
May 4, 2010·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Richard B T PriceChristopher M Felix
Aug 10, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·M A HadisW M Palin
Nov 12, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·J G LeprinceW M Palin

❮ Previous
Next ❯

Citations

May 30, 2013·Journal of the Mechanical Behavior of Biomedical Materials·William Cunha BrandtMário Alexandre Coelho Sinhoreti
May 28, 2014·The Journal of Prosthetic Dentistry·Hong DingXiaoping Luo
Jan 9, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Dragica ManojlovicVesna Miletic
Dec 4, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Julian G LeprinceGaetane Leloup
Apr 22, 2015·Lasers in Medical Science·Jung-Hoon RoYong Hoon Kwon
Feb 11, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Fernanda Missio CamargoLuis Felipe Schneider
Dec 12, 2012·Journal of Dentistry·Pedro Paulo A C AlbuquerqueLuis Felipe J Schneider
Mar 17, 2017·Brazilian Dental Journal·Marcus Vinicius Loureiro BertoloLuis Felipe J Schneider
Sep 30, 2017·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Çağatay BarutcigilBurak Yilmaz
Apr 30, 2021·Brazilian Dental Journal·Mateus Garcia RochaDayane Oliveira
Mar 20, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·William M PalinMohammed A Hadis
Jul 3, 2021·Polymers·Alma Antonia Pérez-MondragónAna M Herrera-González

❮ 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
Luis Felipe J SchneiderJack L Ferracane
Dental Materials : Official Publication of the Academy of Dental Materials
J G LeprinceW M Palin
Dental Materials : Official Publication of the Academy of Dental Materials
J G LeprinceG Leloup
© 2021 Meta ULC. All rights reserved