Long-term effect of ethanol on the bond strength of fiber-glass posts to root dentin

• Autor(a) principal: Bordin, Dimorvan
• Data de Publicação: 2015
• Outros Autores: Cavalcanti, Yuri Wanderley, Farina, Ana Paula, Carlini-Júnior, Bruno, Cecchin, Doglas
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista odonto ciência (Online)
• Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/12666
• topic: Cementation; intracanal retention; root posts; ethanol; Cimentação; técnica para retentor intra-radicular; pinos dentários; etanol

Objective: To evaluate the long-term effect of ethanol (EtOH) application on the bond strength of adhesive systems used in post luting to root dentin.Methods: Bovine roots (n=40) had their root channel prepared for post luting and were etched with 37% phosphoric acid (15 s). Specimens were distributed according to adhesive system and EtOH application. Control groups received only the application of adhesives Adper ScothBond Multi-Purpose Plus (ASb), ou Adper Single Bond (SB). Experimental groups received previous EtOH application for 1 minute (EtOH+ASb and EtOH+SB groups). After fiber glass post luting, specimens were stored for 24 h, or 12 months, and later subjected to push-out test (n=5). Data were analyzed by three-way analysis of variance and Tukey test (α<0.05).Results: The EtOH application did not influence the bond strength values in immediate evaluation (24 h), regardless of the adhesive system used (p>0.05). After 12 months, it was observed significant statistically reduction of adhesive resistance (p<0.05); however the EtOH+SB group did not presented statistical difference between the evaluated storage periods (p>0.05).Conclusion: EtOH pre-treatment contributes to maintain the long-term bond strength, when water and ethanol-based adhesive system is used.