Effect of Different Fluoride Concentrations of Experimental Dentifrices on Enamel Erosion and Abrasion

Moretto, Marcelo Juliano; Magalhães, Ana Carolina; Sassaki, Kikue Takebayashi; Delbem, Alberto Carlos Botazzo; Martinhon, Cleide Cristina Rodrigues

doi:10.1159/000302902

Cited by 102 publications

(107 citation statements)

References 69 publications

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“…Several studies have suggested that TMP reduces the demineralization process, and that an ideal TMP/F ratio allows an enhancement of the effects of F-containing products (7,8,(10)(11)(12)(13). When TMP and F are co-administered, the adsorption of TMP on the enamel surface can change the selective permeability and facilitate the diffusion of ions such as Ca and F (12) into the enamel (20,21).…”

Section: Discussionmentioning

confidence: 99%

“…It has also been observed a higher F content in the enamel after use of this mouthrinse, although the type of F deposits on the enamel has not been identified: loosely bound F (calcium fluoride -CaF 2 ) or firmly bound F (fluorapatite -FA) (11). Other studies demonstrated that an adequate TMP/F ratio can improve the effectiveness of F-based products even at low F concentrations (12)(13)(14). Nevertheless, the mechanism of TMP action is not yet completely clear.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Sodium Trimetaphosphate on Hydroxyapatite Solubility: An In Vitro Study

et al. 2013

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This study evaluated the effect of different concentrations of sodium trimetaphosphate (TMP) with and without fluoride (F) on the concentration of calcium (Ca), phosphorus (P) and F in hydroxyapatite (HA). Synthetic HA powder (0.15 g) was suspended (n=6) in solutions (75 mL) of TMP at 0%, 0.1%, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 2.0%, 4.0%, 6.0%, 8.0% and 10% concentrations in the presence and absence of 100 ppm F and subjected to a pH-cycling process. The precipitates were filtrated, dried at 70° C for 24 h and ground onto a fine powder. The concentrations of F (KOH (CaF 2 ) and HCl (FA) soluble), Ca (Arsenazo III), and P (molybdate method) in HA were determined. The Ca P, and Ca/P ratio data were subjected to Tukey's test and the F data were subjected to Student-Newman-Keuls test (p<0.05). The addition of TMP to the samples reduced F deposition to 98% (p<0.001). The groups containing 100 ppm F and 0.4% or 0.6% TMP exhibited a higher Ca concentration than the group containing only 100 ppm F (p<0.05). Furthermore, the HA treated with 0.2% and 0.4% TMP and 100 ppm F showed a higher Ca/P ratio than the other groups (p<0.001). In conclusion, TMP at 0.2%, 0.4% and 0.6% concentrations combined with F seemed to be able to precipitate HA with low solubility. However, especially at high concentrations, TMP interferes with F deposition on HA.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Sodium Trimetaphosphate on Hydroxyapatite Solubility: An In Vitro Study

et al. 2013

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“…14 The specimens were rinsed thoroughly with deionized water and immersed in artificial saliva, pH 7.0 (10 mL/block) at room temperature for 2 h, between erosive challenges 14 and overnight. The artificial saliva was made according to the Moretto et al 14 study.…”

Section: Erosive Challenge and Treatmentmentioning

confidence: 99%

“…15 The enamel specimens were exposed to one of the pastes immediately after each erosive challenge. 14 The fluoride varnish was applied only once, just before the erosive challenge, to simulate a clinical situation. 12,16,17 Hardness assessment…”

Section: Erosive Challenge and Treatmentmentioning

confidence: 99%

Protective effect of calcium nanophosphate and CPP-ACP agents on enamel erosion

et al. 2013

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The aim of this study was to assess the effect of different remineralizing agents on enamel microhardness (KHN) and surface topography after an erosive challenge. Forty-eight human enamel specimens (4 × 4 mm) were randomly assigned to 4 groups: control (no treatment), fluoride varnish, calcium nanophosphate paste and casein phosphopeptide-amorphous calcium phosphate paste (CPP-ACP). Both pastes were applied for 5 minutes, and fluoride varnish, for 24 h. Four daily erosive cycles of 5 minutes of immersion in a cola drink and 2 h in artificial saliva were conducted for 5 days. KHN readings were performed at baseline and after 5 days. The percentage of enamel hardness change (%KHN) was obtained after erosion. The surface topography was evaluated by atomic force microscopy (AFM). The data were tested using ANOVA, Tukey's and paired-T tests (p < 0.05). After an erosive challenge, there was no statistically significant difference between the control (96.8 ± 11.4 KHN / 72.4 ± 3.0 %KHN) and the varnish (91.7 ± 14.1 KHN / 73.4 ± 5.5 %KHN) groups. The nanophosphate group showed lower enamel hardness loss (187.2 ± 27.9 / 49.0 ± 7.9 %KHN), compared with the CPP-ACP group (141.8 ± 16.5 / 60.6 ± 4.0 %KHN), and both were statistically different from the varnish and the control groups. AFM images showed a rough surface for the control and the varnish groups, a non-homogeneous layer with globular irregularities for CPP-ACP, and a thick homogeneous layer for the nanophosphate group. None of the agents provided protection against the development of erosion; however, nanophosphate paste was able to reduce enamel surface softening after the erosive challenge.

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“…Desta forma, o flúor tópico, vernizes fluoretados, flúor gel e suplementação sistêmica podem constituir métodos bastante eficazes no processo de remineralização dentária 5 . A literatura tem apresentado melhores resultados quanto à remineralização quando a concentração de flúor atinge os 5.000 ppm F nos dentifrícios 24 . Em se tratando de aplicação tópica de flúor (ATF), dentre as variáveis analisadas em nosso estudo, esta demonstrou relação estatisticamente significativa em relação à erosão dentária (p=0,012).…”

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Prevalência de erosão dentária e fatores associados em uma população de escolares

Santana

Silva

Paiva

et al. 2018

Rev. odontol. UNESP

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Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado.Prevalência de erosão dentária e fatores associados em uma população de escolaresPrevalence of dental erosion and associated factors in a schoolchildren population ResumoIntrodução: Erosão dentária é a perda irreversível de tecido dentário, sem envolvimento bacteriano, cujo aumento de prevalência, nos últimos anos, tem sido alarmante. Objetivo: Determinar a prevalência de erosão dentária, bem como fatores associados, em escolares de 06 a 13 anos, na cidade de Campina Grande, Paraíba. Material e método: A seleção das escolas foi realizada por amostragem casual simples sem reposição. Após assinatura do Termo de Consentimento Livre e Esclarecido, e do Termo de Assentimento, os exames foram realizados por um examinador previamente calibrado, com a criança sentada em uma cadeira escolar, em frente ao examinador, sob luz natural. Para a determinação da presença e do grau de erosão dentária, foi utilizado o índice de BEWE. Os dados foram analisados por meio do software Statistical Package for the Social Sciences (SPSS para Windows, versão 18.0, SPSS Inc, Chicago, IL, EUA) e adotou-se nível de significância de 5%. Resultado: A prevalência de erosão dentária na população avaliada foi de 78,2%. Não foi possível associar a presença das lesões com os fatores socioeconômicos e dietéticos. Apenas a variável Aplicação Tópica de Flúor (ATF) apresentou relação estatisticamente significativa (p=0,012). Conclusão: A alta prevalência de erosão dentária na população avaliada demonstra a necessidade da implementação de medidas assistenciais e preventivas, em curto e longo prazo.Descritores: Erosão dentária; epidemiologia; crianças. AbstractIntroduction: Dental erosion is the irreversible loss of dental tissue, without bacterial involvement, whose increased prevalence in recent years has been alarming. Objective: To determine the prevalence of dental erosion, as well as associated factors, in school children from 06 to 13 years of age, in the city of Campina Grande, PB. Material and method: Selection of schools was performed by simple random sampling without replacement. After signing the Informed Consent Term and Assent Term, the examinations were performed by a previously calibrated examiner, with the child sitting in a school chair in front of the examiner in natural light. To determine the presence and degree of dental erosion, the BEWE index was used. Data were analyzed using Statistical Package for Social Sciences (SPSS for Windows, version 18.0, SPSS Inc, Chicago, IL, USA) and a significance level of 5% was used. Result: The prevalence of dental erosion in the evaluated population was 78.2%. It was not possible to associate the presence of lesions with socioeconomic and dietary factors. Only the variable Topical Application of Fluoride (TFA) presented a statistically significant relation (p = 0.012...

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Effect of Different Fluoride Concentrations of Experimental Dentifrices on Enamel Erosion and Abrasion

Cited by 102 publications

References 69 publications

Effect of Sodium Trimetaphosphate on Hydroxyapatite Solubility: An In Vitro Study

Effect of Sodium Trimetaphosphate on Hydroxyapatite Solubility: An In Vitro Study

Protective effect of calcium nanophosphate and CPP-ACP agents on enamel erosion

Prevalência de erosão dentária e fatores associados em uma população de escolares

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