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Fluoride Concentration in SDF Commercial Products and Their Bioavailability with Demineralized Dentine
Department of BiosciencesSoares-Yoshikawa, Aline Laignier; Department of BiosciencesCury, Jaime Aparecido; Department of BiosciencesTabchoury, Cínthia Pereira Machado.
  • Department of BiosciencesSoares-Yoshikawa, Aline Laignier; Universidade Estadual de Campinas. Piracicaba Dental School. Department of BiosciencesSoares-Yoshikawa, Aline Laignier. Piracicaba. BR
  • Department of BiosciencesCury, Jaime Aparecido; Universidade Estadual de Campinas. Piracicaba Dental School. Department of BiosciencesCury, Jaime Aparecido. Piracicaba. BR
  • Department of BiosciencesTabchoury, Cínthia Pereira Machado; Universidade Estadual de Campinas. Piracicaba Dental School. Department of BiosciencesTabchoury, Cínthia Pereira Machado. Piracicaba. BR
Braz. dent. j ; 31(3): 257-263, May-June 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1132306
ABSTRACT
Abstract The aim of this in vitro study was to determine the fluoride concentration in silver diamine fluoride (SDF) products and their bioavailability with demineralized dentine. The products evaluated (expected fluoride concentrations) were I Saforide 38% (45,283 ppm F); II Advantage Arrest 38.3 to 43.2% (45,283 to 51,013 ppm F); III Ancárie 12% (14,100 ppm F); IV Ancárie 30% (35,400 ppm F), V Cariestop 12% (14,100 ppm F) and VI Cariestop 30% (35,400 ppm F). The fluoride concentration was evaluated using an ion-specific electrode (ISE) by direct technique, which was confirmed after microdiffusion. The pH of the products was determined with a pH test strip. For the bioavailability test, demineralized dentine slabs were treated with one of the products for 1 min. Loosely (CaF2-like) and firmly-bound fluoride (FAp) were determined. The fluoride concentration found in the products (mean±SD; ppm F) by the ISE direct technique was I53,491±554; II57,249±1,851; III4,814±268; IV5,726±43; V10,145±468; VI11,858±575; these values were confirmed after microdiffusion (t-test; p>0.05) and disagree with the declared by the manufacturers. The pH of Ancárie 12 and 30% was 6.0 and 4.5, respectively, in disagreement with the alkaline pH expected for SDF solution and found in the other products evaluated. There was no correlation between either CaF2-like (r=0.221; p=0.337) or FAp (r=-0.144; p=0.830) formed in demineralized dentine and fluoride concentration found in the products. The problems of pH and fluoride concentration found in available professional commercial SDF products suggest that they are not under sanitary surveillance.
RESUMO
Resumo O objetivo deste estudo in vitro foi determinar a concentração de fluoreto nos produtos de diamino fluoreto de prata (DFP) e sua biodisponibilidade com dentina desmineralizada. Os produtos avaliados (concentrações esperadas de flúor) foram I Saforide 38% (45.283 ppm F); II Advantage Arrest 38,3 a 43,2% (45.283 a 51.013 ppm F); III Ancárie 12% (14.100 ppm F); IV Ancárie 30% (35.400 ppm F), V Cariestop 12% (14.100 ppm F) e VI Cariestop 30% (35.400 ppm F). A concentração de fluoreto foi avaliada utilizando um eletrodo íon-específico (EIE) por técnica direta, que foi confirmada após microdifusão. O pH dos produtos foi determinado com uma tira de teste de pH. Para o teste de biodisponibilidade, blocos de dentina desmineralizada foram tratados com um dos produtos por 1 min. Fluoreto fracamente (tipo CaF2) e firmemente ligado (FAp) foram determinados. A concentração de fluoreto encontrada nos produtos (média±DP; ppm F) pela técnica direta com EIE foi I 53.491±554; II 57.249±1.851; III 4.814±268; IV 5.726±43; V 10.145±468; VI 11.858±575; esses valores foram confirmados após microdifusão (teste t; p>0,05) e discordam dos declarados pelos fabricantes. O pH do Ancárie 12 e 30% foi de 6,0 e 4,5, respectivamente, em desacordo com o pH alcalino esperado para a solução de DFP e encontrado nos demais produtos avaliados. Não houve correlação entre CaF2 (r=0,221; p=0,337) ou FAp (r=-0,144; p=0,830) formados na dentina desmineralizada e concentração de fluoreto encontrada nos produtos. Os problemas de pH e concentração de fluoreto encontrados nos produtos comerciais profissionais disponíveis de DFP sugerem que eles não estão sob vigilância sanitária.
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Full text: Available Index: LILACS (Americas) Main subject: Cariostatic Agents / Fluorides Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR

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Full text: Available Index: LILACS (Americas) Main subject: Cariostatic Agents / Fluorides Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR