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Anti-erosive properties of solutions containing fluoride and different film-forming agents.
Scaramucci, Taís; Borges, Alessandra B; Lippert, Frank; Zero, Domenick T; Aoki, Idalina V; Hara, Anderson T.
Afiliação
  • Scaramucci T; Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 2227, São Paulo, Brazil.
  • Borges AB; Department of Restorative Dentistry, Univ. Estadual Paulista, Av. Eng. Francisco José Longo 777, Jardim São Dimas, São José dos Campos, Brazil.
  • Lippert F; Oral Health Research Institute, Department of Preventive and Community Dentistry, Indiana University School of Dentistry, Indianapolis, IN, USA.
  • Zero DT; Oral Health Research Institute, Department of Preventive and Community Dentistry, Indiana University School of Dentistry, Indianapolis, IN, USA.
  • Aoki IV; Department of Chemical Engineering, Polytechnic School, University of São Paulo, Av. Prof. Luciano Gualberto, travessa 3, 380, São Paulo, Brazil.
  • Hara AT; Oral Health Research Institute, Department of Preventive and Community Dentistry, Indiana University School of Dentistry, Indianapolis, IN, USA. Electronic address: ahara@iu.edu.
J Dent ; 43(4): 458-65, 2015 Apr.
Article em En | MEDLINE | ID: mdl-25625672
OBJECTIVES: To evaluate the anti-erosive potential of solutions containing sodium fluoride (NaF, 225 ppm F) and different film-forming agents. METHODS: In Phase 1, hydroxyapatite crystals were pre-treated with solutions containing NaF (F), linear sodium polyphosphate (LPP), sodium pyrophosphate tetrabasic (PP), sodium tripolyphosphate (STP), sodium caseinate (SC), bovine serum albumin (BSA), stannous chloride (Sn) and some combinations thereof. Deionized water was the control (C). The pH-stat method was used to evaluate hydroxyapatite dissolution. In Phase 2, the most effective solutions were tested in two independent experiments. Both consisted of an erosion-remineralization cycling model using enamel and dentine specimens with three solution treatments per day. In Phase 2a, the challenge was performed with 0.3% citric acid (pH=3.8). In Phase 2b, 1% citric acid (pH=2.4) was used. Hard tissue surface loss was determined profilometrically. Data were analyzed with two-way ANOVA and Tukey tests. RESULTS: In Phase 1, F, LPP, Sn and some of their combinations caused the greatest reduction in hydroxyapatite dissolution. In Phase 2a, C showed the highest enamel loss, followed by LPP. There were no differences between all other groups. In Phase 2b: (F+LPP+Sn) < (F+LPP) = (F+Sn) < (F) = (LPP+Sn) < (LPP) < (Sn) < C. For dentine, in both experiments, only the fluoride-containing groups showed lower surface loss than C, except for LPP+Sn in 2a. CONCLUSIONS: F, Sn, LPP reduced enamel erosion, this effect was enhanced by their combination under highly erosive conditions. For dentine, the F-containing groups showed similar protective effect. CLINICAL SIGNIFICANCE: The addition of LPP and/or Sn can improve the fluoride solution protection against erosion of enamel but not of dentine.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fluoreto de Sódio / Remineralização Dentária / Cariostáticos Limite: Humans Idioma: En Revista: J Dent Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fluoreto de Sódio / Remineralização Dentária / Cariostáticos Limite: Humans Idioma: En Revista: J Dent Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido