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Effect of different surface treatments and adhesive cementation on the surface topography and flexural strength of translucent and ultra-translucent monolithic zirconia.
da Silva, Bianca Cristina Dantas; da Silva, Sarah Emille Gomes; da Silva, Nathália Ramos; de Moreira, Fernanda Gurgel Gois; Souza, Karina Barbosa; Zhang, Yu; de Souza, Rodrigo Othávio Assunção.
Afiliación
  • da Silva BCD; Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
  • da Silva SEG; Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
  • da Silva NR; Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
  • de Moreira FGG; Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
  • Souza KB; Institute of Science and Technology, Paulista State University (UNESP), São José dos Campos, São Paulo, Brazil.
  • Zhang Y; Department of Preventive and Restorative, University of Pennsylvania, School of Dental Medicine, Philadelphia, USA.
  • de Souza ROA; Department of Dentistry, Adjunct Professor in Prosthodontics, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
J Prosthodont ; 2024 Aug 27.
Article en En | MEDLINE | ID: mdl-39189693
ABSTRACT

PURPOSE:

To evaluate the effect of different surface treatments and adhesive cementation on the miniflexural strength (MFS) of monolithic zirconia. MATERIALS AND

METHODS:

Two-hundred and forty (240) sintered bars of translucent zirconia (ZT) and ultra-translucent zirconia (ZUT) were obtained (8 mm ×2 mm ×1 mm). The bars were divided into 16 groups (n = 15) according to the factors "Zirconia" (ZT and ZUT), "Cementation" (Cem) and "surface treatment" (CtrlControl, AlAluminum oxide/Al2O3 50 µm, SiSilica/SiO2 coated alumina particles oxide 30 µm, GlGlazing+hydrofluoric acid). Half of the bars received an adhesive layer application, followed by application of resin cement and light curing. The surface roughness was measured in non-cemented groups. All the bars were subjected to the MFS test (1.0 mm/min; 100 kgf). Scanning electron microscopy was used for qualitative analyses. MFS data (MPa) and roughness (µm) were statistically evaluated by three-way and two-way ANOVA respectively and Tukey's test (5%).

RESULTS:

The surface treatment and the interaction were significant for roughness. Glazing promoted less roughness compared to silicatization. Regarding MFS, only the zirconia and surface treatment factors were significant. For ZT, the sandblasted groups had an increase in MFS and glazing reduced it. There was no difference between the groups without cementation for the ZUT; however, ZUT.Si/Cem, and ZUT.Al/Cem obtained superior MFS among the cemented groups.

CONCLUSIONS:

Sandblasting increases the flexural strength for ZT, while glaze application tends to reduce it. Applying resin cement increases the flexural strength of ZUT when associated with sandblasting. Sandblasting protocols promote greater surface roughness.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Prosthodont Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Prosthodont Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos