1. Effects of neutralizing or antioxidant agents on the consequences induced by enamel bleaching agents in immediate resin composite restorations
- Author
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Idiane Bianca Lima Soares, Nádia da Rocha Svizero, Jéssica Eleotério Moraes, Paulo Henrique Perlatti D’Alpino, M. A. S. Agulhari, Luciana Aparecida Calegari Romani, Salvatore Sauro, and Vinicius Di Hipólito
- Subjects
Sodium ascorbate ,Antioxidant ,Materials science ,genetic structures ,medicine.medical_treatment ,Resin composite ,0206 medical engineering ,Dentistry ,02 engineering and technology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,stomatognathic system ,Materials Chemistry ,medicine ,Composite material ,Sodium bicarbonate ,Enamel paint ,business.industry ,ANTIOXIDANTES ,030206 dentistry ,Surfaces and Interfaces ,General Chemistry ,Buccal administration ,020601 biomedical engineering ,Shear bond ,Surfaces, Coatings and Films ,stomatognathic diseases ,chemistry ,Mechanics of Materials ,visual_art ,visual_art.visual_art_medium ,sense organs ,Adper single bond 2 ,business - Abstract
Purpose: Bleaching agents are claimed to impair the bonding to the tooth structure when resin composite restorations are immediately performed. This study aimed to evaluate the effect of a neutralizing solution (10% sodium bicarbonate) or an antioxidant agent (10% sodium ascorbate) on the immediate or delayed (15 days) shear bond strength (SBS) of composite restorations performed on enamel. Seventy flat buccal enamel surfaces obtained from bovine incisors were divided into seven groups (n = 10): control group, unbleached enamel, restored (3M ESPE/Adper Single Bond 2/Filtek Z350XT) (G1); bleached, immediately restored (G2); bleached, delayed restoration (G3); bleached, antioxidant (sodium ascorbate), immediately restored (G4); bleached, antioxidant, delayed restoration (G5); bleached, neutralizing (sodium bicarbonate), immediate restoration (G6); bleached, neutralizing, delayed restoration (G7). Specimens were submitted to SBS test and examined after failure using scanning electron microscopy (SEM)...
- Published
- 2016