| Microhardness of intracoronal dentin exposed to bleaching and fluoride treatment. | |
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MedLine Citation:
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PMID: 21778082 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: The aim of this study was to assess the surface microhardness (SMH) of intracoronal dentin exposed to 38% hydrogen peroxide (HP) light-activated or not and to 2% sodium fluoride gel (F2%) or 5% varnish (F5%). STUDY DESIGN: Intracoronal dentin specimens were exposed to bleaching (B), bleaching and light activation (BL), or no bleaching (NB), followed by F2%, F5%, or no exposure (NF). SMH test was performed. Four specimens of each group were analyzed by scanning electron microscopy (SEM). RESULTS: Analysis of variance and Tukey test (α = 5%) showed higher SMH of NB than BL or B. Specimens exposed to F5% presented the highest SMH and differed from F2% and NF. BL + NF yielded inferior SMH and was similar to B + NF, BL + F2%, B + F2%, BL + F5%, and NB + NF. NB + F5% showed superior values and did not differ from NB + F2%, B + F5%, and NB + NF. CONCLUSIONS: Bleaching with 38% HP, light-activated or not, reduced the SMH of intracoronal dentin. F5% provided SMH to the level of unbleached specimens. |
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Authors:
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Felipe Barros-Matoso; Aline Evangelista de Souza-Gabriel; Danielle Cristine Furtado-Messias; Manoel Damião de Sousa-Neto; Edson Alfredo |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-19 |
Journal Detail:
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Title: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics Volume: - ISSN: 1528-395X ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9508562 Medline TA: Oral Surg Oral Med Oral Pathol Oral Radiol Endod Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Mosby, Inc. All rights reserved. |
Affiliation:
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School of Dentistry, University of Ribeirão Preto, Ribeirão Preto, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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