| Comparing bond strengths of brackets on primary teeth with 3 different primers. | |
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MedLine Citation:
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PMID: 20483014 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purposes of this study were to: (1) examine the shear bond strengths (SBSs) of orthodontic brackets bonded to primary teeth with conventional, self-etching, and moisture-insensitive primers; and (2) evaluate the mode of bracket failure. METHODS: Seventy-eight human primary teeth were divided equally into 6 groups: (1) the enamel surface was etched, and a conventional primer was applied under dry conditions; (2) the enamel surface was dried, and a self-etching primer was applied; (3) the enamel surface was etched, and a moisture-insensitive primer was applied under dry conditions; (4-6) the same adhesives were used as those in groups 1 to 3, but before priming, each tooth was moistened. Metal brackets were bonded with adhesive. SBSs were measured using a universal testing machine, and the bracket/adhesive failure modes were evaluated with the adhesive remnant index. RESULTS: A notable drop in bond strength and a high incidence of bond failure at the enamel-adhesive interface were found in group 4. There was no significant difference in mean SBSs among the other groups. CONCLUSION: These adhesive systems under specific conditions enable us to use a primary tooth in the sectional bracket appliance as the anchor tooth, thus helping improve the outcome of early treatment for malocclusion. |
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Authors:
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Rieko Ozoe-Ishida; Toshiya Endo; Shohachi Shimooka |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Pediatric dentistry Volume: 32 ISSN: 0164-1263 ISO Abbreviation: Pediatr Dent Publication Date: 2010 Mar-Apr |
Date Detail:
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Created Date: 2010-05-20 Completed Date: 2010-06-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7909102 Medline TA: Pediatr Dent Country: United States |
Other Details:
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Languages: eng Pagination: 118-22 Citation Subset: D; IM |
Affiliation:
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Department of Orthodontic Dentistry, The Nippon Dental University School of Life Dentistry, Niigata, Japan. lieko@ngt.ndu.ac.jp |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acid Etching, Dental
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methods Curing Lights, Dental Dental Alloys / chemistry Dental Bonding / methods* Dental Enamel / ultrastructure Dental Stress Analysis / instrumentation Ethanol / chemistry Humans Materials Testing Methacrylates / chemistry Orthodontic Brackets* Phosphoric Acids / chemistry Resin Cements / chemistry* Shear Strength Stress, Mechanical Surface Properties Tooth, Deciduous / ultrastructure* Water / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Dental Alloys; 0/Methacrylates; 0/Phosphoric Acids; 0/Resin Cements; 0/Transbond Plus Self-Etching Primer; 0/Transbond XT; 0/Transbond moisture-insensitive primer; 64-17-5/Ethanol; 7664-38-2/phosphoric acid; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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