Document Detail


The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study.
MedLine Citation:
PMID:  18425248     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to assess the salivary residual effect of fluoride dentifrice on human enamel subjected to an erosive challenge. This crossover in situ study was performed in two phases (A and B), involving ten volunteers. In each phase, they wore acrylic palatal appliances, each containing 3 human enamel blocks, during 7 days. The blocks were subjected to erosion by immersion of the appliances in a cola drink for 5 minutes, 4 times a day. Dentifrice was used to brush the volunteers teeth, 4 times a day, during 1 minute, before the appliance was replaced into the mouth. In phases A and B the dentifrices used had the same formulation, except for the absence (PD) or presence (FD) of fluoride, respectively. Enamel alterations were determined using profilometry, microhardness (%SMHC), acid- and alkali-soluble F analysis. The data were tested using ANOVA (p < 0.05). The concentrations (mean +/- SD) of alkali- and acid-soluble F (microgF/cm(2)) were, respectively, PD: 1.27 feminine +/- 0.70/2.24A +/- 0.36 and FD: 1.49 feminine +/- 0.44/2.24A +/- 0.67 (p > 0.05). The mean wear values (+/- SD, microm) were PD: 3.63 feminine +/- 1.54 and FD: 3.54 feminine +/- 0.90 (p > 0.05). The mean %SMHC values (+/- SD) were PD: 89.63 feminine +/- 4.73 and FD: 87.28 feminine +/- 4.01 (p > 0.05). Thus, we concluded that the residual fluoride from the fluoride-containing dentifrice did not protect enamel against erosion.
Authors:
Ana Carolina Magalhães; Daniela Rios; Cleide Cristina Rodrigues Martinhon; Alberto Carlos Botazzo Delbem; Marília Afonso Rabelo Buzalaf; Maria Aparecida de Andrade Moreira Machado
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian oral research     Volume:  22     ISSN:  1807-3107     ISO Abbreviation:  -     Publication Date:    2008 Jan-Mar
Date Detail:
Created Date:  2008-04-21     Completed Date:  2009-02-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101307187     Medline TA:  Braz Oral Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  67-71     Citation Subset:  D; IM    
Affiliation:
Department of Child and Social Dentistry, School of Dentistry of Araçatuba, São Paulo State University.
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MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Carbonated Beverages / adverse effects
Cariostatic Agents / chemistry,  therapeutic use*
Cross-Over Studies
Dental Enamel / drug effects*
Dentifrices / chemistry*
Double-Blind Method
Fluorides, Topical / chemistry,  therapeutic use*
Humans
Saliva / chemistry*,  physiology
Tooth Abrasion / prevention & control
Tooth Erosion / chemically induced,  prevention & control*
Young Adult
Chemical
Reg. No./Substance:
0/Cariostatic Agents; 0/Dentifrices; 0/Fluorides, Topical

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