| In vitro evaluation of the effect of dietary acids and toothbrushing on human root dentin permeability. | |
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MedLine Citation:
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PMID: 20213027 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: The purpose of this in vitro study was to quantify the alterations in human root dentin permeability after exposure to dietary acids and to evaluate the effect of toothbrushing after acid application. METHOD AND MATERIALS: Extracted human third molars had their crowns sectioned above the CEJ, pulp tissue removed, and cervical root dentin exposed using a high-speed bur (approximately 1 mm in depth of substance loss). From each root fragment, one specimen was prepared. A total of 25 specimens were used and distributed randomly into five groups. The specimens were attached to a hydraulic pressure apparatus to evaluate the alterations of root dentin permeability after exposure to different acids. Dentin permeability was measured after the following sequential steps: (1) treatment with EDTA for 3 minutes to obtain the maximum permeability; (2) root planing to create a smear layer; (3) exposure to different acidic substances for 5 minutes (vinegar, cola drink, lemon juice, white wine, and orange juice); and (4) brushing for 3 minutes. RESULTS: All acidic substances increased dentin permeability after root planing. Lemon juice produced higher values for permeability when compared to the other substances (P = .009); moreover, orange juice showed similar results (P < .02) except when compared to vinegar (P = .12). Brushing right after acid exposure significantly reduced dentin permeability except in the vinegar group (P = .07). CONCLUSION: Under the experimental conditions, dietary acids increased root dentin permeability, and immediate brushing reduced permeability levels. |
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Authors:
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Daniela Leal Zandim; Fabio Renato Manzolli Leite; Jos? Eduardo Cezar Sampaio |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Quintessence international (Berlin, Germany : 1985) Volume: 41 ISSN: 1936-7163 ISO Abbreviation: Quintessence Int Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-09 Completed Date: 2010-06-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0342677 Medline TA: Quintessence Int Country: Germany |
Other Details:
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Languages: eng Pagination: 257-63 Citation Subset: D |
Affiliation:
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Department of Diagnostic and Oral Surgery, School of Dentistry at Araraquara, S?o Paulo State University, Araraquara, S?o Paulo, Brazil. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetic Acid
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adverse effects* Adolescent Adult Beverages / adverse effects* Citric Acid / adverse effects* Dentin Permeability / drug effects* Dentin Sensitivity / chemically induced, prevention & control* Humans Statistics, Nonparametric Tooth Cervix / drug effects Tooth Root / drug effects Toothbrushing* Young Adult |
| Chemical | |
Reg. No./Substance:
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64-19-7/Acetic Acid; 77-92-9/Citric Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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