| Effect of Er,Cr:YSGG Laser and Professional Fluoride Application on Enamel Demineralization and on Fluoride Retention. | |
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MedLine Citation:
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PMID: 22739669 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study evaluated the effect of Er,Cr:YSGG laser irradiation and professional fluoride application on enamel demineralization and on fluoride formation and retention. In a blind in vitro study, 264 human enamel slabs were distributed into 8 groups: G1 - untreated; G2 - treated with acidulated phosphate fluoride gel (APF gel, 1.23% F) for 4 min; G3, G4 and G5 - irradiated with Er,Cr:YSGG at 2.8, 5.6 and 8.5 J/cm(2), respectively; G6, G7 and G8 - preirradiated with Er,Cr:YSGG at 2.8, 5.6 and 8.5 J/cm(2), respectively, and subjected to APF gel application. Twenty slabs of each group were submitted to a pH-cycling regimen, and enamel demineralization was evaluated in 10 slabs of each group. In the other 10 slabs, CaF(2)-like material was determined. To evaluate F formed, 10 additional slabs of each group, not subjected to the pH cycling, were submitted to analysis of CaF(2)-like material and fluorapatite, while the other 3 slabs of each group were evaluated by scanning electron microscopy. The F content was also measured in all pH-cycling solutions. Laser at 8.5 J/cm(2) and APF treatment reduced enamel demineralization compared to the control (p < 0.05), but the combination of these treatments was not more efficient than their isolated effect. A higher concentration of retained CaF(2)-like material was found in laser groups followed by APF in comparison with the APF gel treatment group. The findings suggest that laser treatment at 8.5 J/cm(2) was able to decrease hardness loss, even though no additive effect with APF was observed. In addition, laser treatment increased the formation and retention of CaF(2) on dental enamel. |
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Authors:
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P A Ana; C P M Tabchoury; J A Cury; D M Zezell |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-6-27 |
Journal Detail:
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Title: Caries research Volume: 46 ISSN: 1421-976X ISO Abbreviation: - Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-6-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0103374 Medline TA: Caries Res Country: - |
Other Details:
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Languages: ENG Pagination: 441-451 Citation Subset: - |
Copyright Information:
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Copyright © 2012 S. Karger AG, Basel. |
Affiliation:
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Universidade Federal do ABC, UFABC, Santo André, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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