Flexural strength of a pressable lithium disilicate ceramic: influence of surface treatments

The aim of this paper was to evaluate the influence of different surface treatments on the flexural strength of a pressable lithium disilicate ceramic. Sixteen bars (16x2x4 mm) were made, divided into subgroups (n = 10), and the following surface treatments were done: C - no treatment; H - etching w...

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Bibliographic Details
Published in:Applied adhesion science 2013-12, Vol.1 (1), p.1-5, Article 7
Main Authors: Sato, Tabata do Prado, Cotes, Caroline, Yamamoto, Lígia Tiaki, Rossi, Natalia Rivoli, da Cruz Macedo, Vanessa, Kimpara, Estevão Tomomitsu
Format: Article
Language:English
Subjects:
49th Meeting of the Brazilian Dental Materials Group
Biomaterials
Cementation
Ceramics
Chemistry and Materials Science
Etching
Flexural strength
Hydrofluoric acid
Lithium
Materials Science
Mechanical Engineering
Modulus of rupture in bending
Surface treatment
Surfaces and Interfaces
Thin Films
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Summary:The aim of this paper was to evaluate the influence of different surface treatments on the flexural strength of a pressable lithium disilicate ceramic. Sixteen bars (16x2x4 mm) were made, divided into subgroups (n = 10), and the following surface treatments were done: C - no treatment; H - etching with 5% hydrofluoric acid; HC - etching with 5% hydrofluoric acid, silanization, and cementation; N – etching with 5% hydrofluoric acid, neutralization with supersaturated solution of sodium bicarbonate, silanization, and cementation; U – etching with 5% hydrofluoric acid, ultrasonic cleaning in distillated water, silanization, and cementation; NU - etching with 5% hydrofluoric acid, neutralization with supersaturated solution of sodium bicarbonate, ultrasonic cleaning in distillated water, silanization and cementation. The three points flexural strength was performed 24 h after cementation and the data were analyzed using one-way ANOVA and Tukey’s tests (p-value = 0.05). The results showed that the surface treatment had a significant effect (p-value 
ISSN:2196-4351
2196-4351
DOI:10.1186/2196-4351-1-7