Effect of an internal coating technique on tensile bond strengths of resin cements to zirconia ceramics.
This study was conducted to enhance the tensile bond strengths of resin cements to zirconia ceramics. Fifty-six zirconia ceramic specimens (Cercon Base) and twenty-eight silica-based ceramic specimens (GN-1, GN-1 Ceramic Block) were air-abraded using alumina. Thereafter, the zirconia ceramic specimens were divided into two subgroups of 28 each according to the surface pretreatment; no pretreatment (Zr); and the internal coating technique (INT). For INT, the surface of zirconia was coated by fusing silica-based ceramics (Cercon Ceram Kiss). Ceramic surfaces were conditioned with/without a silane coupling agent followed by bonding with one of two resin cements; Panavia F 2.0 (PF) and Superbond C&B (SB). After 24 hours storage in water, the tensile bond strengths were tested (n=7). For both PF and SB, silanization significantly improved the bond strength to GN-1 and INT (p<0.05). The INT coating followed by silanizaton demonstrated enhancement of bonding to zirconia ceramics.
Kitayama
Shuzo
S
Cariology and Operative Dentistry, Department of Restorative Science, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. nuevo_centro@yahoo.co.jp
Nikaido
Toru
T
Maruoka
Rena
R
Zhu
Lei
L
Ikeda
Masaomi
M
Watanabe
Akihiko
A
Foxton
Richard M
RM
Miura
Hiroyuki
H
Tagami
Junji
J
D020099:Coated Materials, Biocompatible; D001840:Dental Bonding; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D019279:Resin Cements; D012821:Silanes; D013718:Tensile Strength; D015040:Zirconium
C438313:Clearfil SE Bond; D020099:Coated Materials, Biocompatible; C438843:Panavia-Fluoro; D019279:Resin Cements; D012821:Silanes; D003776:Dental Porcelain; D015040:Zirconium; C028541:zirconium oxide