| Short Communication: In vitro evaluation of the abrasiveness of acidic dentifrices. | |
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MedLine Citation:
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PMID: 19863899 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: This in vitro study evaluated the abrasiveness of acidic fluoride (F) dentifrices with different F concentrations on bovine enamel. METHODS: Enamel blocks (4.0 x 4.0 mm2, n=120) were selected according to their surface microhardness and divided into 12 groups. Slurries of dentifrices were used containing 0 (placebo), 275, 412, 550 and 1,100 ppm F (pH 4.5 or 7.0), as well as testing two commercial dentifrices (Crest, positive control, 1,100 ppm F and Colgate Baby, 500 ppm F). Enamel blocks were partially protected with an adhesive tape (control area) and then brushed by an automated toothbrushing machine (16,000 strokes). During this process, 0.4 ml of the slurries were injected every 2 mins on the enamel blocks. After toothbrushing, enamel wear was determined by profilometry. STATISTICS: Results were analyzed by ANOVA and Tukey's test (p<0.05). RESULTS: The mean values for pH in the suspensions during treatment were 6.93, 4.32, 7.56 and 8.19 for neutral experimental dentifrices, acidic experimental dentifrices, Crest and Colgate baby, respectively. The abrasiveness of the acidic dentifrices was similar (p<0.05) to the neutral ones, whereas commercial dentifrices yielded lower abrasion (p<0.05). CONCLUSION: It was concluded that a reduction of the pH of dentifrices does not increase their abrasiveness. |
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Authors:
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K M Alves; J P Pessan; M A Buzalaf; A C Delbem |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry Volume: 10 Suppl 1 ISSN: 1818-6300 ISO Abbreviation: Eur Arch Paediatr Dent Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2009-10-29 Completed Date: 2010-03-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101277157 Medline TA: Eur Arch Paediatr Dent Country: England |
Other Details:
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Languages: eng Pagination: 43-5 Citation Subset: D; IM |
Affiliation:
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Ara?atuba Dental School, S?o Paulo State University and Bauru Dental School, University of 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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Acidulated Phosphate Fluoride
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chemistry,
therapeutic use* Animals Cariostatic Agents / chemistry, therapeutic use* Cattle Chemistry, Pharmaceutical Dental Enamel / pathology Dentifrices / chemistry, therapeutic use* Hydrogen-Ion Concentration Materials Testing Placebos Random Allocation Silicon Dioxide / chemistry, therapeutic use Sodium Fluoride / chemistry, therapeutic use Tooth Abrasion / etiology* Toothbrushing / instrumentation Toothpaste / chemistry, therapeutic use |
| Chemical | |
Reg. No./Substance:
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0/Cariostatic Agents; 0/Crest Regular Dentifrice; 0/Dentifrices; 0/Placebos; 0/Toothpaste; 39456-59-2/Acidulated Phosphate Fluoride; 7631-86-9/Silicon Dioxide; 7681-49-4/Sodium Fluoride |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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