| Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study. | |
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MedLine Citation:
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PMID: 20379684 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To determine the influence of the light curing units on the shear bond strength of orthodontic brackets. MATERIAL AND METHODS: Seventy-two premolars were divided into six groups (n=12): Group I: brackets bonded with Transbond and polymerization with halogen light; Group II: Transbond and LED; Group III: Fuji Ortho and halogen light; Group IV: Fuji Ortho and LED; Group V: Fuji Ortho, without acid and halogen light; Group VI: Fuji Ortho, without acid and LED. The groups were tested to shear strength in a universal testing machine at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by ANOVA and Tukey's test. RESULTS: The composite resin presented higher shear bond strength than the resin-modified glass ionomer cement (p<0.05). The halogen light and LED sources produced similar shear bond strength (p>0.05). CONCLUSION: The shear bond strength was influenced by the material but not by the light-curing unit. The use of LED reduced the experimental time by approximately 60%, with the same curing efficiency. |
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Authors:
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Luciana Borges Retamoso; Niége Michelle Lazzari Onofre; Luciane Hann; Ernani Menezes Marchioro |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Journal of applied oral science : revista FOB Volume: 18 ISSN: 1678-7765 ISO Abbreviation: J Appl Oral Sci Publication Date: 2010 Jan-Feb |
Date Detail:
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Created Date: 2010-04-09 Completed Date: 2010-07-15 Revised Date: 2010-12-02 |
Medline Journal Info:
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Nlm Unique ID: 101189774 Medline TA: J Appl Oral Sci Country: Brazil |
Other Details:
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Languages: eng Pagination: 68-74 Citation Subset: D; IM |
Affiliation:
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Pontifical Catholic University of Rio Grande do Sul, Curitiba, PR, Brazil. retamosolb@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acid Etching, Dental Acrylic Resins / chemistry Aluminum Silicates / chemistry Composite Resins / chemistry Curing Lights, Dental* / classification Dental Alloys / chemistry* Dental Bonding* Dental Cements / chemistry* Dental Stress Analysis / instrumentation Glass Ionomer Cements / chemistry Humans Orthodontic Brackets* Polymers / chemistry Radiation Dosage Resin Cements / chemistry Shear Strength Stainless Steel / chemistry Stress, Mechanical Surface Properties Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Acrylic Resins; 0/Aluminum Silicates; 0/Composite Resins; 0/Dental Alloys; 0/Dental Cements; 0/Fuji Ortho; 0/Glass Ionomer Cements; 0/Polymers; 0/Resin Cements; 0/Transbond XT; 12597-68-1/Stainless Steel |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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