title: Effect of an internal coating technique on tensile bond strengths of resin cements to zirconia ceramics.
abstract: 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.
authors.affiliation: Cariology and Operative Dentistry, Department of Restorative Science, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. nuevo_centro@yahoo.co.jp
authors.forename: Shuzo
authors.initials: S
authors.lastname: Kitayama
authors.forename: Toru
authors.initials: T
authors.lastname: Nikaido
authors.forename: Rena
authors.initials: R
authors.lastname: Maruoka
authors.forename: Lei
authors.initials: L
authors.lastname: Zhu
authors.forename: Masaomi
authors.initials: M
authors.lastname: Ikeda
authors.forename: Akihiko
authors.initials: A
authors.lastname: Watanabe
authors.forename: Richard M
authors.initials: RM
authors.lastname: Foxton
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Miura
authors.forename: Junji
authors.initials: J
authors.lastname: Tagami
mesh_terms: D020099:Coated Materials, Biocompatible; D001840:Dental Bonding; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D019279:Resin Cements; D012821:Silanes; D013718:Tensile Strength; D015040:Zirconium
chemical_list: C438313:Clearfil SE Bond; D020099:Coated Materials, Biocompatible; C438843:Panavia-Fluoro; D019279:Resin Cements; D012821:Silanes; D003776:Dental Porcelain; D015040:Zirconium; C028541:zirconium oxide