Bond Strength of a Bisphenol-A-Free Fissure Sealant With and Without Adhesive Layer under Conditions of Saliva Contamination
| Autor: | Cíntia Guimarães de Almeida, Iliana Ferraz Sabbatini, Maria Cristina Borsatto, Késsia Suênia Fidelis de Mesquita-Guimarães, Rodrigo Galo, Paulo Nelson-Filho |
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| Rok vydání: | 2016 |
| Předmět: |
Pit and Fissure Sealants
Molar Bisphenol A Materials science Dentistry Dental bonding 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Phenols stomatognathic system 030225 pediatrics Humans shear strength Benzhydryl Compounds Composite material Saliva General Dentistry Universal testing machine Enamel paint Bond strength business.industry Sealant Dental Bonding 030206 dentistry fissure sealants stomatognathic diseases chemistry Bisphenol-A visual_art visual_art.visual_art_medium Adhesive CONTAMINAÇÃO business |
| Zdroj: | Brazilian Dental Journal, Volume: 27, Issue: 3, Pages: 309-312, Published: JUN 2016 Brazilian Dental Journal v.27 n.3 2016 Brazilian Dental Journal Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0103-6440 |
| DOI: | 10.1590/0103-6440201600569 |
| Popis: | Dental sealants are important for prevention of carious lesions, if they have good shear strength. The aim of this study was to evaluate the shear bond strength (SBS) of two sealants to saliva-contaminated and non-contaminated enamel with and without an intermediate adhesive layer underneath the sealant. Ninety flat enamel surfaces from human third molars were randomly assigned to 6 groups (n=15): F (control): Fluroshield(tm) sealant; EWB (control): Embrace(tm) WetBond(tm); SB/F: Single Bond adhesive system + F; SB/EWB, s-SB/F and s-SB/EWB. In the s-SB/F and s-SB/EWB groups, the acid-etched enamel was contaminated with 0.01 mL of fresh human saliva for 20 s. Sealant cylinders were bonded to enamel surface with and without an intermediate adhesive system layer. The shear tests were performed using a universal testing machine (0.5 mm/min). Data were analyzed statistically by Kruskal-Wallis and Mann-Whitney tests (α=0.05). F presented higher mean SBS than EWB in all experimental conditions. The lowest SBS mean was obtained for EWB on contaminated enamel (p |
| Databáze: | OpenAIRE |
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