The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study

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 con...

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Main Authors: Ana Carolina Magalhães, Daniela Rios, Cleide Cristina Rodrigues Martinhon, Alberto Carlos Botazzo Delbem, Marília Afonso Rabelo Buzalaf, Maria Aparecida de Andrade Moreira Machado
Format: Article
Language:English
Published: Sociedade Brasileira de Pesquisa Odontológica 2008-03-01
Series:Brazilian Oral Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100012
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author Ana Carolina Magalhães
Daniela Rios
Cleide Cristina Rodrigues Martinhon
Alberto Carlos Botazzo Delbem
Marília Afonso Rabelo Buzalaf
Maria Aparecida de Andrade Moreira Machado
author_facet Ana Carolina Magalhães
Daniela Rios
Cleide Cristina Rodrigues Martinhon
Alberto Carlos Botazzo Delbem
Marília Afonso Rabelo Buzalaf
Maria Aparecida de Andrade Moreira Machado
author_sort Ana Carolina Magalhães
collection DOAJ
description 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 (µgF/cm²) were, respectively, PD: 1.27ª ± 0.70/2.24A ± 0.36 and FD: 1.49ª ± 0.44/2.24A ± 0.67 (p > 0.05). The mean wear values (± SD, µm) were PD: 3.63ª ± 1.54 and FD: 3.54ª ± 0.90 (p > 0.05). The mean %SMHC values (± SD) were PD: 89.63ª ± 4.73 and FD: 87.28ª ± 4.01 (p > 0.05). Thus, we concluded that the residual fluoride from the fluoride-containing dentifrice did not protect enamel against erosion.
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spelling doaj.art-f54ad9c50d31443589564139b0ba78322022-12-21T21:07:10ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1806-83242008-03-01221677110.1590/S1806-83242008000100012The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ studyAna Carolina MagalhãesDaniela RiosCleide Cristina Rodrigues MartinhonAlberto Carlos Botazzo DelbemMarília Afonso Rabelo BuzalafMaria Aparecida de Andrade Moreira MachadoThe 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 (µgF/cm²) were, respectively, PD: 1.27ª ± 0.70/2.24A ± 0.36 and FD: 1.49ª ± 0.44/2.24A ± 0.67 (p > 0.05). The mean wear values (± SD, µm) were PD: 3.63ª ± 1.54 and FD: 3.54ª ± 0.90 (p > 0.05). The mean %SMHC values (± SD) were PD: 89.63ª ± 4.73 and FD: 87.28ª ± 4.01 (p > 0.05). Thus, we concluded that the residual fluoride from the fluoride-containing dentifrice did not protect enamel against erosion.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100012Tooth erosionDental enamelFluorine
spellingShingle Ana Carolina Magalhães
Daniela Rios
Cleide Cristina Rodrigues Martinhon
Alberto Carlos Botazzo Delbem
Marília Afonso Rabelo Buzalaf
Maria Aparecida de Andrade Moreira Machado
The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
Brazilian Oral Research
Tooth erosion
Dental enamel
Fluorine
title The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
title_full The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
title_fullStr The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
title_full_unstemmed The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
title_short The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study
title_sort influence of residual salivary fluoride from dentifrice on enamel erosion an in situ study
topic Tooth erosion
Dental enamel
Fluorine
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100012
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