| Phosphoric acid incorporated with acidulated phosphate fluoride gel etchant effects on bracket bonding. | |
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MedLine Citation:
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PMID: 16097241 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to evaluate the effects of etching with phosphoric acid incorporated in an acidulated phosphate fluoride (APF) gel on the bonding of a bracket and the loss of sound enamel. In the control group, the enamel was etched with 37% phosphoric acid for 30 seconds. In the experimental groups, the enamel was etched for 30 seconds with 37% phosphoric acid blended with 1.23% APF gel at various ratios (25%, 33%, 50%, 67%, and 75% APF gel). The brackets were bonded with Transbond XT light-cured orthodontic adhesive according to the manufacturer's instructions. The specimens were then treated under three different conditions: 37 degrees C for one hour, 37 degrees C for 24 hours, and thermocycling (2500 times) between 5 degrees C and 55 degrees C in deionized water. The shear bond strength of 10 specimens in each condition was measured and the results analyzed using a Tukey multiple comparison test (P = .05). The shear bond strength decreased significantly as the fraction of the APF gel increased in the experimental etchant. An apparent increase in the adhesive remnant index score was also observed in the large fraction of the APF gel. To minimize the damage of the sound enamel surface during the etching and debonding procedures, a mixture of phosphoric acid and an APF gel (50% and 67% APF fraction) can be used as an phosphoric acid etchant substitute without loss of the proper bracket bond strength. |
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Authors:
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Min-Jeong Kim; Bum-Soon Lim; Won-Gun Chang; Yong-Keun Lee; Sang-Hoon Rhee; Hyeong-Cheol Yang |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Angle orthodontist Volume: 75 ISSN: 0003-3219 ISO Abbreviation: Angle Orthod Publication Date: 2005 Jul |
Date Detail:
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Created Date: 2005-08-15 Completed Date: 2005-09-19 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370550 Medline TA: Angle Orthod Country: United States |
Other Details:
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Languages: eng Pagination: 678-84 Citation Subset: D; IM |
Affiliation:
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Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, South Korea. |
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* Acidulated Phosphate Fluoride* Bicuspid Dental Bonding* Dental Stress Analysis Drug Combinations Gels Humans Materials Testing Microscopy, Electron, Scanning Orthodontic Brackets* Phosphoric Acids Random Allocation Resin Cements Shear Strength |
| Chemical | |
Reg. No./Substance:
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0/Drug Combinations; 0/Gels; 0/Phosphoric Acids; 0/Resin Cements; 0/Transbond XT; 39456-59-2/Acidulated Phosphate Fluoride; 7664-38-2/phosphoric acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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