| Bond strength of a mild self-etch adhesive with and without prior acid-etching. | |
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MedLine Citation:
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PMID: 15979226 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The self-etch approach provides dentists with a generation of user-friendly and less technique-sensitive adhesives. Nevertheless, some concern has been raised regarding their bonding effectiveness to enamel, in particular when so-called 'mild' self-etch adhesives are employed. OBJECTIVES: The purpose of this study was to test the hypothesis that the two-step self-etch adhesive Clearfil SE Bond (C-SE; Kuraray, Osaka, Japan) bonds equally effective to enamel/dentin either with or without prior etching with phosphoric acid. METHODS: Bur-cut enamel/dentin surfaces prepared from human molars were partially split in two halves by cutting a shallow groove. One half was first etched with 40% phosphoric acid (K-etchant), while protecting the other half by holding a razor blade in the groove. Next, C-SE was applied strictly following the manufacturer's instructions, after which the surface was built up using Z100 (3M Espe). After 24-h water storage, micro-specimens were prepared with the interface circularly constricted using a Micro-Specimen Former, prior to micro-tensile bond strength (MPa) measurement. In addition, interfaces of C-SE with enamel/dentin prepared with and without beforehand acid etching were examined by Feg-SEM and TEM. RESULTS: Beforehand etching significantly increased the bonding effectiveness of C-SE to enamel. A clearly more micro-retentive surface was revealed by TEM and Feg-SEM when enamel was etched. Phosphoric-acid etching prior to C-SE application on dentin significantly decreased the muTBS to dentin. TEM provided indications of a low-quality hybrid layer after beforehand phosphoric-acid etching. CONCLUSION: Using C-SE, additional etching with phosphoric acid to improve bonding effectiveness should be limited to enamel. |
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Authors:
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K L Van Landuyt; P Kanumilli; J De Munck; M Peumans; P Lambrechts; B Van Meerbeek |
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Publication Detail:
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Type: Controlled Clinical Trial; Journal Article Date: 2005-06-23 |
Journal Detail:
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Title: Journal of dentistry Volume: 34 ISSN: 0300-5712 ISO Abbreviation: J Dent Publication Date: 2006 Jan |
Date Detail:
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Created Date: 2005-12-19 Completed Date: 2006-03-14 Revised Date: 2010-05-10 |
Medline Journal Info:
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Nlm Unique ID: 0354422 Medline TA: J Dent Country: England |
Other Details:
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Languages: eng Pagination: 77-85 Citation Subset: D; IM |
Affiliation:
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Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acid Etching, Dental
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methods* Analysis of Variance Dental Bonding / methods* Dental Enamel / ultrastructure Dentin / ultrastructure Dentin-Bonding Agents / chemistry* Humans Resin Cements / chemistry* Tensile Strength |
| Chemical | |
Reg. No./Substance:
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0/Clearfil SE Bond; 0/Dentin-Bonding Agents; 0/Resin Cements |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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