Combining Panavia V5 primers with RelyX Ultimate cement resulted in notably high bond strength in a recent dental study.
Researchers evaluated the influence of combining primers and cements from different resin cement systems on the microtensile bond strength (μTBS) between zirconia and dentin. This study, published in BDJ Open, involved 120 zirconia-to-dentin specimens, divided into eight groups based on the type of cement (RelyX Ultimate or Panavia V5) and the primers (Tooth Primer, Clearfil Ceramic Primer, and Scotchbond Universal Adhesive) applied to either dentin or ceramic surfaces. Following artificial aging with 5000 thermocycles, μTBS tests were conducted.
Results showed that the Panavia V5 cement system exhibited the highest bond strength at 19.4 ± 4.4 MPa, which was “significantly higher” than other groups except for the combination of RelyX cement with Panavia primers (16.9 ± 3.7 MPa). The predominant failure mode observed was cohesive fractures within the cement layer.
The study concluded that the combination of primers from different adhesive cement systems can significantly affect bonding effectiveness. To ensure a more predictable clinical outcome, the researchers noted it is crucial to use products from a single product line of the same adhesive cement system and follow the manufacturer’s recommendations.
The authors declared no competing interests.