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Microstructural and flexural strength of various CAD-CAM lithium disilicate ceramics.
Zaniboni, Joissi Ferrari; Silva, Amanda Soares; Silva, Aryvelto Miranda; Besegato, João Felipe; Muñoz-Chávez, Oscar Fernando; de Campos, Edson Alves.
Afiliação
  • Zaniboni JF; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil.
  • Silva AS; School of Dentistry (FAODO), Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil.
  • Silva AM; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil.
  • Besegato JF; Department of Restorative Dentistry, Federal University of Piauí (UFPI), Teresina, Piauí, Brazil.
  • Muñoz-Chávez OF; School of Dentistry (FAODO), Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil.
  • de Campos EA; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil.
J Prosthodont ; 2024 Sep 04.
Article em En | MEDLINE | ID: mdl-39233435
ABSTRACT

PURPOSE:

To analyze the microstructural and mechanical properties of various commercial trademarks of lithium disilicate ceramics for CAD-CAM systems. MATERIALS AND

METHODS:

Specimens of different lithium disilicate ceramics were obtained and randomized into 5 groups (n = 14) EM e.max CAD; RT Rosetta SM; EV Evolith; PM Smile-Lithium CAD; and, HS HaHaSmile. The microstructural analysis was performed by X-ray diffraction (XRD) and scanning electron microscopy (SEM); for flexural strength, the three-point bending flexure test was used. XRD and SEM data were qualitatively evaluated. Data from flexural strength were assessed with one-way ANOVA test (α = 0.05) and Weibull analysis.

RESULTS:

High peaks corresponding to the lithium metasilicate and lithium disilicate pattern with similar intensities were observed in all ceramics in the XRD analysis. SEM images showed similar patterns of crystalline structure in the EM and RT ceramics, while the other three groups presented different crystal morphologies than the previous ones and were similar to each other. No differences were found in flexural strength among the groups (p = 0.28).

CONCLUSIONS:

The CAD-CAM lithium disilicate ceramics showed comparable crystalline intensities. The microstructure of the EM and RT ceramics were different from the other groups. Flexural strength was similar among all ceramics.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Prosthodont Assunto da revista: ODONTOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Prosthodont Assunto da revista: ODONTOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos