Adhesive bonding of zirconia with single-liquid acidic primers and a tri-n-butylborane initiated acrylic resin.
OBJECTIVE
The purpose of the current study was to evaluate the effect of acidic primers on the bond strength and durability of an acrylic resin luting agent to zirconia.


METHODS
Disk specimens were fabricated from zirconia partially stabilized with yttrium oxide (Katana, Noritake Dental Supply). The disks were treated with one of the following acidic primers: Acryl Bond (Shofu), All Bond II Primer B (Bisco), Alloy Primer (Kuraray), Estenia Opaque Primer (Kuraray), Eye Sight Opaque Primer (Kanebo), M.L. Primer (Shofu), MR. Bond (Tokuyama Dental), or Super-Bond Liquid (Sun Medical). Unprimed specimens served as the control. The disks were bonded with a tri-n-butylborane (TBB)-initiated acrylic resin. Shear bond strengths were determined both before and after 10,000 thermocycles (5°C and 55°C, 1 min dwell time each).


RESULTS
The pre-thermocycling bond strength ranged from 0.7 MPa to 30.8 MPa, whereas post-thermocycling bond strength varied from 0.3 MPa to 17.6 MPa. The significantly highest post-thermocycling bond strength was obtained when using the Alloy Primer and Estenia Opaque Primer agents.


CONCLUSIONS
Within the limitations of the current experiment, it can be concluded that application of either the Alloy Primer or the Estenia Opaque Primer, both of which contain 10-methacryloyloxydecyl dihydrogen phosphate (MDP), is recommended for bonding the Katana zirconia material with TBB-initiated acrylic resin.
Nihon University Graduate School of Dentistry, Chiyoda-ku, Tokyo, Japan.
Daisuke
D
Nakayama
Hiroyasu
H
Koizumi
Futoshi
F
Komine
Markus B
MB
Blatz
Naomi
N
Tanoue
Hideo
H
Matsumura
D000134:Acid Etching, Dental / Q000379:methods*; D000180:Acrylic Resins / Q000737:chemistry; D001896:Boron Compounds; D001840:Dental Bonding / Q000379:methods*; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents / Q000737:chemistry; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013499:Surface Properties; D015019:Yttrium; D015040:Zirconium
D000180:Acrylic Resins; D001896:Boron Compounds; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D019279:Resin Cements; C499362:yttria stabilized tetragonal zirconia; D003776:Dental Porcelain; C009523:tri-n-butylborane; D015019:Yttrium; C069749:methacryloyloxydecyl dihydrogen phosphate; D015040:Zirconium; C028541:zirconium oxide