Effect of adhesion promoting monomer addition to MMA-TBBO resin on bonding to pure palladium.
This study evaluated the effects of combined use of metal primers and modified monomers on the bonding of MMA-TBBO resins to pure palladium (Pd). Bonding surface was polished with 600-grit silicon carbide paper and primed with one of these four metal primers: V-Primer, M. L. Primer, Metaltite, or Alloy Primer. Four monomers, including three modified ones, were added to MMATBBO resin. One was a methyl methacrylate monomer containing no adhesion promoting monomers, while the other two modified monomers contained the functional monomer of either V-Primer or Alloy Primer. Bonded specimens were prepared by incremental build-up of MMA-TBBO resin on primed Pd surfaces. Shear bond strengths were measured after thermal cycling. Bonding to Pd was significantly improved when modified monomer containing the functional monomer of Alloy Primer was used in combination with M. L. Primer or Metaltite applied on the bonding surface.
Fixed Prosthetic Clinic, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan. minami@dent.kagoshima-u.ac.jp
Hiroyuki
H
Minami
Sadaaki
S
Murahara
Koichi
K
Muraguchi
Kenji
K
Sakoguchi
Shiro
S
Suzuki
Takuo
T
Tanaka
D000704:Analysis of Variance; D003722:Dental Alloys / Q000737:chemistry; D001840:Dental Bonding / Q000379:methods*; D019544:Equipment Failure Analysis; D008689:Methacrylates / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D014227:Triazines / Q000737:chemistry*
D003722:Dental Alloys; D008689:Methacrylates; D019279:Resin Cements; D014227:Triazines; D010165:Palladium