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Role of chlorhexidine in bond strength to artificially eroded dentin over time.

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Authors
Francisconi dos Rios, Luciana Fávaro
Casas-Apayco, Leslie
Calabria, Marcela Pagani
Francisconi, Paulo Afonso Silveria
Borges, Ana Flávia Sanches
Wang, Linda
Issue Date
2015-04
Keywords
Tooth erosion
Dentin
bonding stability
chlorhexidine
Proteases inhibitors
Aging
MeSH
Acid Etching, Dental
Anti-Infective Agents, Local
Carbon Compounds, Inorganic
Carbonated Beverages
Chlorhexidine
Composite Resins
Dental Bonding
Dental Cements
Dental Etching
Dental Materials
Dental Stress Analysis
Dentin
Humans
Hydrogen-Ion Concentration
Microscopy, Confocal
Mouthwashes
Phosphoric Acids
Saliva, Artificial
Silicon Compounds
Surface Properties
Tensile Strength
Time Factors
Tooth Erosion
Water
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Citation
Role of chlorhexidine in bond strength to artificially eroded dentin over time. 2015, 17 (2):133-9 J Adhes Dent
Publisher
Quintessence Publishing Group
Journal
The journal of adhesive dentistry (J Adhes Dent.)
URI
http://hdl.handle.net/10757/607257
DOI
10.3290/j.jad.a34059
PubMed ID
25901301
Additional Links
http://www.ncbi.nlm.nih.gov/pubmed/25901301
Abstract
PURPOSE: To assess the long-term effect of a 2% aqueous chlorhexidine (CHX) solution on bond strength to artificially eroded dentin compared to sound dentin. MATERIALS AND METHODS: Flat mid-coronal dentin surfaces of extracted third molars (n = 28) were subjected only to grinding with a 600-grit SiC paper for 1 min (sound dentin S, n = 14) or additionally to erosive pH cycling with a cola-based soft-drink (eroded dentin E, n = 14). After acid etching, rinsing, and air drying, S and E were rehydrated with 1.5 μl of 2% CHX (S2%, n = 7; E2%, n = 7) or of distilled water (control SC, n = 7; EC, n = 7). Composite buildups were incrementally constructed with Filtek Z350 following Adper Single Bond 2 application. Specimens were sectioned into beams, which were subjected to microtensile testing immediately or after 6 or 12 months of aging. Fractured surfaces were observed under a digital microscope (50X magnification). Microtensile bond strength (μTBS) (MPa) was analyzed by three-way ANOVA and Tukey's tests (α = 0.05) and failure mode by the Kruskal-Wallis test (α = 0.05). RESULTS: Compared to sound dentin, eroded dentin was consistently related to lower μTBS. Immediately and after 12-month aging, the effect of CHX was insignificant, but it was significant after 6-month aging, when it conserved the bond strength to both eroded and sound dentin. The percentage of adhesive and mixed failures were equivalent, and significantly more frequent than cohesive failures, whether in dentin or in composite. CONCLUSION: The 2% CHX effect on bond strength conservation to both eroded and sound dentin was not found to be persistent.
Type
info:eu-repo/semantics/article
Rights
info:eu-repo/semantics/embargoedAccess
Language
eng
Description
El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
ISSN
1461-5185
ae974a485f413a2113503eed53cd6c53
10.3290/j.jad.a34059
Scopus Count
Collections
Odontología

entitlement

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