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Volume 20 , Issue 5
September/October 2007

Pages 532534

Resin Microtensile Bond Strength to Feldspathic Ceramic: Hydrofluoric Acid Etching vs Tribochemical Silica Coating

Fernanda Pelogia, DDS, MS / Luiz Felipe Valandro, DDS, MS, PhD / Vinicius Brigagao, DDS, MS / Maximiliano Piero Neisser, PhD / Marco A. Bottino, PhD

PMID: 17944345

This study aimed to compare the microtensile bond strength of resin cement to alumina-reinforced feldspathic ceramic submitted to acid etching or chairside tribochemical silica coating. Ten blocks of Vitadur-a were randomly divided into 2 groups according to conditioning method: (1) etching with 9.6% hydrofluoric acid or (2) chairside tribochemical silica coating. Each ceramic block was luted to the corresponding resin composite block with the resin cement (Panavia F). Next, bar specimens were produced for microtensile testing. No significant difference was observed between the 2 experimental groups (Student t test, P > .05). Both surface treatments showed similar microtensile bond strength values. Int J Prosthodont 2007; 20:532534.

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