Effect of bleaching agents on the microhardness of tooth-colored restorative materials

The Journal of Prosthetic Dentistry
Arzu Mujdeci, Osman Gökay

Abstract

There is no consensus concerning the effect of bleaching gels on microhardness of restorative materials. Information about the effect of whitening strips on microhardness of restorative materials is also limited. The purpose of this study was to evaluate the effect of a bleaching gel and a whitening strip on the microhardness of 3 tooth-colored restorative materials. Forty cylindrical specimens (6 x 2 mm) of each restorative material, including a nanohybrid composite resin (Grandio), a polyacid-modified composite resin (Dyract eXtra), and a glass-ionomer cement (Ionofil Molar AC), were prepared and stored in distilled water at 37 degrees C for 24 hours. The specimens were then polished using medium, fine, and superfine polishing disks and stored in 37 degrees C distilled water for 7 days. Specimens were divided into 4 groups (n=10). One group was selected for baseline Vickers hardness measurements (load 100 g, dwell time 20 seconds) of the top surfaces. The other 3 groups were treated for 21 days with 1 of the following: distilled water (control), bleaching gel (10% carbamide peroxide), or whitening strip (14% hydrogen peroxide). The top surfaces of the treated specimens were also subjected to the same hardness testing performe...Continue Reading

References

Sep 1, 1994·The Journal of the American Dental Association·V B HaywoodW D Brunson
Nov 1, 1996·Journal of Dentistry·M S McCracken, V B Haywood
Aug 3, 2002·Journal of Oral Rehabilitation·S B Türker, T Biskin
Jul 16, 2003·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Inger CamposGláucia Ambrosano

❮ Previous
Next ❯

Citations

Jun 28, 2011·Operative Dentistry·Özlem MalkonduMübin Soyman
Jan 26, 2013·Journal of Conservative Dentistry : JCD·Hila HajizadehBehnam Mirzaeepoor
Jan 26, 2011·The Journal of Prosthetic Dentistry·Hao YuYining Wang
Jun 3, 2009·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Nadia Z FahmyMohamed Zamzam
Sep 19, 2012·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Ayhan GurbuzRukiye Durkan
Jan 1, 2009·International Journal of Dentistry·Simone Xavier Silva CostaVanderlei Salvador Bagnato
Aug 22, 2015·Restorative Dentistry & Endodontics·Sedighe Sadat HashemikamangarMohammad Javad Kharazifard
Aug 12, 2014·Restorative Dentistry & Endodontics·Sedighe Sadat Hashemi KamangarSeyed Jalal Pourhashemi
Jan 18, 2017·Journal of Dental Research, Dental Clinics, Dental Prospects·Mahmoud BahariAyda Savadi Oskoee
Jun 29, 2011·Journal of Applied Oral Science : Revista FOB·Isil Cekic-Nagas, Gulfem Ergun
Jul 13, 2006·Current Opinion in Otolaryngology & Head and Neck Surgery·Christopher J Schmidt, Sherard A Tatum
Oct 27, 2017·Journal of Lasers in Medical Sciences·Ladan Ranjbar OmraniSedighe Sadat Hashemi Kamangar
Feb 29, 2020·Restorative Dentistry & Endodontics·Renan Aparecido FernandesPaulo Henrique Dos Santos
Jan 1, 2015·The Journal of Contemporary Dental Practice·Suellen Nogueira Linares LimaMatheus Coelho Bandéca

❮ 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
Christian HannigThomas Attin
Dental Materials : Official Publication of the Academy of Dental Materials
Olga PolydorouThorsten Mathias Auschill
Dental Materials : Official Publication of the Academy of Dental Materials
Thomas AttinRengin Attin
Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]
Débora Alves Nunes Leite LimaJosé Roberto Lovadino
© 2022 Meta ULC. All rights reserved