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Effect of erosive and abrasive challenges on the glaze layer applied to ceramic materials.
Willers, Amanda Endres; da Silva, Beatriz Togoro Ferreira; Siriani, Luciana Kfouri; Cesar, Paulo Francisco; Matos, Adriana Bona.
Afiliação
  • Willers AE; Department of Restorative Dentistry, University of São Paulo, São Paulo, Brazil.
  • da Silva BTF; Department of Restorative Dentistry, University of São Paulo, São Paulo, Brazil.
  • Siriani LK; Department of Restorative Dentistry, University of São Paulo, São Paulo, Brazil.
  • Cesar PF; Department of Biomaterials and Oral Biology, University of São Paulo, São Paulo, Brazil.
  • Matos AB; Department of Restorative Dentistry, University of São Paulo, São Paulo, Brazil.
J Esthet Restor Dent ; 32(8): 815-822, 2020 12.
Article em En | MEDLINE | ID: mdl-32827220
PURPOSE: This study aims to evaluate the effect of erosive, abrasive, and erosive/abrasive challenges on the glaze layer of ceramic materials. METHODS: Ninety-five samples of monolithic zirconia (MZ) (LuxaCam Zircon HT-Plus) and lithium disilicate (LD) (IPS e.max CAD) were divided according to the response variables: Surface roughness and surface loss (n = 10), evaluated with optical profilometry; surface topography, with scanning electron microscopy SEM (n = 3); and biofilm deposition, with microbiological assay (n = 5). The evaluations were performed in three different time evaluations: (a) Sintered, (b) Glaze, and (c) Challenge (Erosion, Abrasion, and Erosion/Abrasion). Erosion consisted in immersing specimens in HCl solution, abrasion was performed with brushing machine, and erosion/abrasion consisted of a combination of the two previous protocols. Data were analyzed with parametric tests (P < 0.05). RESULTS: MZ glaze layer presented significantly higher surface roughness (P = 0.00), surface loss (P = 0.03), and biofilm deposition (P = 0.00) than LD. Abrasion and erosion/abrasion showed similar outcomes, generating significantly higher surface roughness (P = 0.00), surface loss (P = 0.00), and biofilm deposition (P = 0.01) than erosion. CONCLUSIONS: Glaze layer properties were altered by the challenges, with abrasion and erosion/abrasion generating higher surface roughness, surface loss, and biofilm deposition than erosion. A significant correlation was found between the surface roughness and biofilm deposition. CLINICAL SIGNIFICANCE: The glaze layer is susceptible to challenges, especially to abrasion and erosion/abrasion, which generated greater surface roughness and surface loss than erosion. The greater surface roughness lead to a greater biofilm deposition on the glaze layer.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cerâmica / Porcelana Dentária Tipo de estudo: Guideline Idioma: En Revista: J Esthet Restor Dent Assunto da revista: ODONTOLOGIA Ano de publicação: 2020 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: Cerâmica / Porcelana Dentária Tipo de estudo: Guideline Idioma: En Revista: J Esthet Restor Dent Assunto da revista: ODONTOLOGIA Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido