Premium
Adhesive primers for bonding cobalt–chromium alloy to resin
Author(s) -
Yoshida K.,
Kamada K.,
Atsuta M.
Publication year - 1999
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.1999.00397.x
Subject(s) - materials science , alloy , adhesive , bond strength , composite material , primer (cosmetics) , curing (chemistry) , crosshead , temperature cycling , metal , metallurgy , chemistry , thermal , glass fiber , physics , organic chemistry , layer (electronics) , meteorology
This study evaluated the effect of five adhesive primers on the shear bond strength of a self‐curing resin to cobalt–chromium (Co‐Cr) alloy. The adhesive primers Acryl Bond® (AB, Shofu), Cesead Opaque Primer® (COP, Kuraray), Metacolor Opaque Bonding Liner® (MOBL, Sun‐Medical), Metal PrimerII® (MPII, GC) and MR. Bond® (MRB, Tokuyama) were used. A brass ring which was placed over the casting alloy disk surface non‐primed or primed with each primer was filled with the self‐curing MMA‐PMMA resin. The specimens were stored in water at 37 °C for 24 h and then immersed alternately in water baths at 4 °C and 60 °C for 1 min each for up to 50 000 thermal cycles before shear mode testing at a crosshead speed of 0·5 mm/min. All of the primers examined, except MOBL, improved the shear bond strength between the resin and Co‐Cr alloy compared with non‐primed specimens prior to thermal cycling. Regardless of which primer was used, the shear bond strength significantly differed between thermal cycles 0 and 50 000. However, after 50 000 thermal cycles, the bond strengths of resin to Co‐Cr alloy primed with COP or MPII were significantly greater than those of specimens primed with AB, MOBL or MRB and non‐primed controls. This study indicated that COP and MPII are effective primers to obtain higher bond strength between resin and Co‐Cr alloy.