title: Effect of surface treatment and liner material on the adhesion between veneering ceramic and zirconia.
abstract: Fully sintered zirconia blocks, each with one polished surface, were treated with one of the followings: 1) no treatment, 2) airborne-particle abrasion with 50μm alumina, and 3) airborne-particle abrasion with 125μm alumina. Before veneering with glass ceramic, either liner Α or liner B were applied on the treated surfaces. All veneered blocks were subjected to shear force in a universal testing machine. For the groups with liner A, irrespective of the particle size, air abrasion on Y-TZP surfaces provided greater bond strength than polishing. Application of liner B on an abraded zirconia surface yielded no significant influence on the adhesion. In addition, specimens with liner A showed higher bond strength than those with liner B, if applied on roughened surfaces. Fractured surfaces were observed as mixed patterns in all groups. For the liner A, surface treatment was helpful in bonding with veneering ceramic, while it was ineffective for the liner B.
authors.affiliation: Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea.
authors.forename: Hyung-In
authors.initials: HI
authors.lastname: Yoon
authors.affiliation: Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea.
authors.forename: In-Sung
authors.initials: IS
authors.lastname: Yeo
authors.affiliation: Department of Prosthodontics, Dentistry Section, Seoul National University Bundang Hospital, Gyunggi-do, South Korea.
authors.forename: Yang-Jin
authors.initials: YJ
authors.lastname: Yi
authors.affiliation: Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea.
authors.forename: Sung-Hun
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea.
authors.forename: Jai-Bong
authors.initials: JB
authors.lastname: Lee
authors.affiliation: Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea. Electronic address: proshan@unitel.co.kr.
authors.forename: Jung-Suk
authors.initials: JS
authors.lastname: Han
mesh_terms: D002516:Ceramics / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry*; D003799:Dental Stress Analysis; D003801:Dental Veneers; D008422:Materials Testing; D033081:Shear Strength; D013499:Surface Properties; D015040:Zirconium / Q000737:chemistry*
chemical_list: D003776:Dental Porcelain; C023506:Glass ceramics; D015040:Zirconium; C028541:zirconium oxide
keywords: Failure mode; Shear bond strength; Surface treatment; Veneer ceramic; Zirconia ceramic