Effect of the adhesive application mode and fiber post translucency on the push-out bond strength to dentin.
This study evaluated the effect of the adhesive application mode and fiber post translucency on the push-out bond strength to dentin. Bovine roots were endodontically treated, and 10 roots were used for each adhesive application mode: PB (Prime&Bond 2.1), PB + SC (Self-cure activator), PB + SBM (Scotchbond Multi-purpose adhesive system), BB (Brush&Bond), BB + CAT (chemical catalyst), and BB + SBM. The translucent Light-Post and Aestheti-Post were cemented. The roots/cemented posts were transversally sectioned to originate three thirds (cervical, middle, and apical). The push-out test was performed, and the failure mode of fractured specimens was analyzed. There was no difference between the fiber posts. For PB and BB, the use of hydrophobic adhesive resin SBM increased post bond strength. The use of SC and CAT catalyst did not affect the push-out bond strength values. The apical third presented the lowest bond strengths.
Faria e Silva
André Luís
AL
Restorative Dentistry, Piracicaba Dental School, University of Campinas, Avenida Limeira 901-Vila Areião, 13414-903 Piracicaba, SP, Brazil. andrelfs@fop.unicamp.br
Casselli
Denise Sá Maia
DS
Ambrosano
Glaucia Maria Bovi
GM
Martins
Luís Roberto Marcondes
LR
D000269:Adhesives / Q000627:therapeutic use*; D000818:Animals; D002417:Cattle; D001840:Dental Bonding / Q000379:methods*; D011176:Post and Core Technique
D000269:Adhesives