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Influence of bleaching gels formulated with nano-sized sodium trimetaphosphate and fluoride on the physicochemical, mechanical, and morphological properties of dental enamel.
Gruba, Amanda Scarpin; Nunes, Gabriel Pereira; Marques, Mariana Takatu; Danelon, Marcelle; Alves, Renata de Oliveira; de Toledo, Priscila Toninatto Alves; Briso, André Luiz Fraga; Delbem, Alberto Carlos Botazzo.
Afiliación
  • Gruba AS; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Nunes GP; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Marques MT; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Danelon M; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Alves RO; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • de Toledo PTA; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Briso ALF; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil.
  • Delbem ACB; Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, Sao Paulo State University (UNESP), Araçatuba, SP, Brazil. Electronic address: alberto.delbem@unesp.br.
J Dent ; 139: 104743, 2023 12.
Article en En | MEDLINE | ID: mdl-37839624
OBJECTIVES: To evaluate in vitro the effects of sodium fluoride (F) and nano-sized sodium trimetaphosphate (TMPnano) added to a 35% hydrogen peroxide (H2O2) bleaching gel on the color alteration, enamel mechanical and morphological properties, and H2O2 transamelodentinal diffusion. MATERIALS AND METHODS: Bovine enamel/dentin discs (n = 180) were divided according to the bleaching gel: 35% H2O2 (HP); 35% H2O2 + 0.1% F (HP/F); 35% H2O2 + 1% TMPnano (HP/TMPnano); 35% H2O2 + 0.1% F + 1% TMPnano (HP/F/TMPnano) and 35% H2O2 + 2% calcium gluconate (HP/Ca). The gels were applied 3 times by 40 min; once each 7-day. The Commission Internationale de l'Eclairage (CIE) L*a*b* total color alteration (ΔE), color alteration by CIEDE2000 (ΔE00), whitening index (ΔWID), surface (SH) and cross-sectional hardness (ΔKHN), surface roughness (Ra), and transamelodentinal diffusion were determined. Enamel surfaces were evaluated by Scanning Electron Microscopy (SEM) and X-ray Dispersive Energy (EDX). Data were submitted to ANOVA, followed by the Student-Newman-Keuls test (p <0.05). RESULTS: ΔE, ΔE00, and ΔWID were similar among the gels that promoted a bleaching effect after treatment (p <0.001). Mineral loss (SH and ΔKHN), Ra, and H2O2 diffusion were lower for HP/F/TMPnano; the HP and HP/Ca groups presented the highest values (p <0.001). For SEM/EDX, surface changes were observed in all bleached groups, but less intense with TMPnano. CONCLUSIONS: Gels containing F/TMPnano do not interfere with the bleaching effect and reduce enamel demineralization, roughness, H2O2 diffusion, and morphological changes. CLINICAL RELEVANCE: Whitening gels containing F/TMPnano can be used as a new strategy to increase safety and maintain clinical performance.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Blanqueamiento de Dientes / Blanqueadores Dentales Límite: Animals / Humans Idioma: En Revista: J Dent Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Blanqueamiento de Dientes / Blanqueadores Dentales Límite: Animals / Humans Idioma: En Revista: J Dent Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido