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Enamel and Dentin Surface Finishing Influence on the Roughness and Microshear Bond Strength of a Lithium Silicate Glass-Ceramic for Laminate Veneers.
Gonzaga, Carla Castiglia; Bravo, Ruth Peggy; Pavelski, Thiago Vinícius; Garcia, Paula Pontes; Correr, Gisele Maria; Leonardi, Denise Piotto; da Cunha, Leonardo Fernandes; Furuse, Adilson Yoshio.
Afiliação
  • Gonzaga CC; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Bravo RP; Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Pavelski TV; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Garcia PP; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Correr GM; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Leonardi DP; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • da Cunha LF; Graduate Program in Dentistry, Positivo University, 81280-330 Curitiba, PR, Brazil.
  • Furuse AY; Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, 17012-901 Bauru, SP, Brazil.
Int Sch Res Notices ; 2015: 243615, 2015.
Article em En | MEDLINE | ID: mdl-27347507
Objectives. This study evaluated the influence of cavity surface finishing with diamond burs of different grit mounted on high-speed turbine and ultrasound on the roughness and microshear bond strength (MBS) of a lithium silicate glass-ceramic to enamel and dentin. Methods. Enamel and dentin specimens were divided into seven groups, according to the type of surface finishing: 1200-grit sandpaper (control), two different brands of medium-grit and fine-grit diamond burs in a high-speed turbine; medium-grit and fine-grit CVD (chemical vapor deposition) tips in an ultrasonic device. Roughness parameters (n = 5) and MSBS to a glass-ceramic (n = 10) were determined. Data were analyzed using ANOVA and Tukey's test (α = 5%). Results. Control group showed lower mean roughness readings and groups that used medium-grit diamond burs showed the highest mean roughness values. Regarding MSBS, there was no statistical difference when comparing the groups gritted with the same brand of medium- and fine-grit burs and tips. Conclusions. Cavity surface finishing influenced the roughness parameters and MSBS of a glass-ceramic to enamel and dentin. Medium-grit diamond burs in high-speed turbine showed the highest mean roughness values. Fine-grit CVD tips in ultrasound presented the highest MSBS values for both enamel and dentin.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Int Sch Res Notices Ano de publicação: 2015 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: Int Sch Res Notices Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos