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Bonding of silver‐palladium‐copper‐gold alloy with thiol derivative primers and tri‐ n ‐butylborane initiated luting agents
Author(s) -
MATSUMURA H.,
A T. TANAK,
ATSUTA M.
Publication year - 1997
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 - 10.1111/j.1365-2842.1997.tb00329.x
Subject(s) - luting agent , primer (cosmetics) , bond strength , materials science , adhesive , palladium , alloy , nuclear chemistry , composite material , chemistry , organic chemistry , layer (electronics) , catalysis
summary This in vitro study evaluated the effect of two primers on bond strengths and durability of luting agents joined to a silver‐palladium‐copper‐gold alloy. One primer (Metal Primer) contained methacryloyloxyalkyl thiophosphate derivative (MEPS). The other primer (V‐Primer) contained 6‐(4‐vinylbenzyI‐ n ‐propyl)aniino‐l,3,5‐triazine‐2,4‐dithiol (VTD). The luting agent was a methyl methacrylate (MMA)‐based adhesive resin that contained 4‐methacryloyloxyethyl trimellitate anhydride (4‐META) and was initiated with tri‐ n ‐butylborane derivative (TBB). In order to evaluate the function of 4‐META, MMA‐TBB resin without 4‐META was used as a control. The alloy specimens were bonded with six combinations of two primers and two luting agents. Shear bond strengths were determined before and after thermocycling. Both primers significantly elevated the bond strengths of the luting agents joined to the alloy. For unprimed groups, 4‐META resin showed a more durable bond than did MMA‐TBB resin. Combined use of Metal Primer with 4‐META resin reduced the bond strength, while combination of V‐Primer and 4‐META resin did not affect the bond strength.