Reactivity and Bond Strength of Universal Dental Adhesives with Co-Cr Alloy and Zirconia

• Main Authors: Dimitris Papadogiannis (Author), Maria Dimitriadi (Author), Maria Zafiropoulou (Author), Maria-Dimitra Gaintantzopoulou (Author), George Eliades (Author)
• Format: Book
• Published: MDPI AG, 2019-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

The aim of this study was to evaluate (a) the reactivity of six universal dental adhesives with polished cobalt-chrome (Co-Cr) alloy and zirconia (3Y-TZP) surfaces; and (b) to assess the shear bond strength (SBS) of a resin composite with polished and alumina-blasted surfaces as mediated by these adhesives. The products tested were Adhese Universal (AD), All-Bond Universal (AB), Clearfill Universal Bond (CB), G-Premio Bond (GP), Prelude One (PO) and Scotchbond Universal (SB). The reactivity on polished substrates was evaluated by reflection infrared microscopy (RFTIRM). The roughness parameters of polished and 50 &#956;m alumina grit-blasted surfaces were assessed by optical profilometry. The SBS of the composite bonded to the substrates treated with each adhesive (n = 10/product) was evaluated after 1 week of storage (H₂O/37 &#176;C) by Weibull statistics. Evidence of phosphate interaction with polished substrates was obtained by FTIRM, with higher peaks on the alloy. Alumina-blasting increased all roughness parameters with higher values on the alloy. AD, CB were the strongest (<i>&#963;</i>₀) treatments on alloy surfaces and AD, CB, AB, SB on zirconia. GP was the weakest on both substrates and the least reliable (<i>&#946;</i>) on alloy. On polished alloy GP, PO performed better (<i>&#963;</i>₀), whereas on zirconia there were no significant differences. All adhesives showed more prominent reaction with the Co-Cr alloy than with 3Y-TZP.

Item Description

2304-6767
10.3390/dj7030078