Comparative Evaluation of Effect of Different Antioxidants on Shear Bond Strength of Composites on Bleached Enamel: An In Vitro Study
Year: 2023
Type: article
Abstract: exposing the bleached enamel surface to water, saline solution, or artificial saliva and the use of antioxidants like ascorbic acid, sodium ascorbate, bicarbonate, or α-tocopherol.In recent years, interest in plant-based natural antioxidants has increased 7 ; antioxidants include aloe vera extract, pedicularis extract, mangosteen extract, grape seed extract, pine bark extract, lycopene, and green tea extract.8 Even though studies have shown improved bond strength by using sodium ascorbate to bleached enamel, natural antioxidants have not yet been thoroughly studied as a potential replacement for sodium ascorbate.In order IntroductIonEsthetic dentistry is one of the most advanced and challenging branches of the dental field.The need for esthetic dentistry has grown significantly. 1 Patients pay more concern to smile esthetics and their color appearance than before.2 Tooth color is a significant issue for dental practitioners and for patients who wish to enhance the appearance of their smiles.There are many reasons for the discoloration of the teeth that might be due to extrinsic or intrinsic stains.3 There are different treatment modalities to remove discoloration, which include removal of surface stains, micro and macro abrasion, veneering, and placement of porcelain crowns.4 From the number of services listed to enhance the appearance of the discolored teeth, bleaching is an option which preserves as much of the natural tooth as possible.5 But one of the prime complications for performing the bleaching procedure is compromised composite resin bond strength to enamel immediately after the bleaching procedure.3 Due to the presence of free radicals of oxygen, which interfere with resin tag formation, inhibit resin polymerization, and compromise the function of the adhesive system.6 The most commonly known approach to overcome this compromised bond strength was to delay the bonding procedure for 24 hours to 3 weeks.7 Numerous methods are there to achieve the compromised bond strength immediately after performing the bleaching technique, such as applying alcohol to bleached enamel before the restoration procedure, use of organic solvent-containing adhesives, and removing the outermost layer of enamel.Other methods are
Authors: Durga Charishma Maddula, Madhu Vasepalli, Satyam Martha, Uday Kumar Chowdary Birapu, Rachuri Punithavathy, Mythraiye Raparla
Institution: SVS Medical College
Language: English
Subfield: General Dentistry
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4360613331