European Journal of Prosthodontics and Restorative Dentistry

Effect of Zirconia Pigmentation on Translucency


The bonding quality of bonding to polyether ether ketone (PEEK) after different surface treatments and adhesive regimens was assessed through shear bond strength. Materials and Methods: Sixty modified PEEK disks were cut out of BioHPP round blanks using CAD-CAM procedures. Disks were subjected to the following surface pretreatments: (A) Sandblasting with alumina (Rocatec) and application of adhesive bonding agent visiolink (control group) (B) Sandblasting with silica-modified alumina (Cojet), application of silane agent Espe Sil, followed by application of adhesive bonding agent Visio-Bond (C) Sandblasting with silica-modified alumina (Cojet), application of silane containing primer-adhesive Clearfil Ceramic Primer, followed by application of adhesive bonding
agent visiolink. A dual-curing resin composite cement (combolign) was luted to all treated surfaces. Each group was further divided to subgroups of 10 specimens which were stored in distilled water at 37°C for 150 days without further thermocycling. Specimens were then submitted to shear bond strength testing. Results: Group (B) was statistically significant different from group (A) (control group). Water storage condition had no significant influence on final bond strength. Conclusions: Use of different conditioning protocols had a significant effect on the final bond strength of composite resin cement
to PEEK surface. Water storage did not significantly influence bonding.
Composite Resin
High Performance Polymers
Shear Strength


Isabel Gomes, Luis P Lopes, Miguel Fonseca, Jaime Portugal

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