Effects of alumina-blasting pressure on the bonding to super/ultra-translucent zirconia

San San May Phyo Aung; Tomohiro Takagaki; Sai Kham Lyann; Masaomi Ikeda; Masanao Inokoshi; Alireza Sadr; Toru Nikaido; Junji Tagami

doi:10.1016/j.dental.2019.02.025

Effects of alumina-blasting pressure on the bonding to super/ultra-translucent zirconia

Dent Mater. 2019 May;35(5):730-739. doi: 10.1016/j.dental.2019.02.025. Epub 2019 Feb 28.

Authors

San San May Phyo Aung¹, Tomohiro Takagaki², Sai Kham Lyann¹, Masaomi Ikeda³, Masanao Inokoshi⁴, Alireza Sadr⁵, Toru Nikaido⁶, Junji Tagami¹

Affiliations

¹ Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
² Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. Electronic address: takagaki.ope@tmd.ac.jp.
³ Department of Oral Prosthetic Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
⁴ Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
⁵ Biomimetics Biomaterials Biophotonics & Technology Laboratory, Department of Restorative Dentistry, University of Washington School of Dentistry, 1959 NE Pacific St. Box 357456, Seatle, WA, 98195-7456, USA.
⁶ Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Hozumi 1851, Mizuho, Gifu 501-0296, Japan.

PMID: 30826073
DOI: 10.1016/j.dental.2019.02.025

Abstract

Objectives: Translucent zirconia has brought the advantages such as less tooth preparation, biological compatibility, high strength, good mechanical properties, and less antagonist wear. This study's aim was to elucidate how clinically relevant surface treatments; alumina-abrasion and priming effect on bond strength of Y-PSZ in three different translucency grades after long-term water storage.

Materials and methods: Three highly translucent Y-PSZ grades were ground flat with #600-grit SiC paper. Four different surface treatments (untreated, alumina blasting at 0.1 MPa or 0.2 MPa or 0.4 MPa) and two resin cements (PANAVIA V5 and PANAVIA SA CEMENT PLUS AUTOMIX) were tested. The bonded specimens were stored in water for 1 day, 30 days and 150 days and tensile bond strength (TBS) were measured with universal testing machine at a crosshead speed of 2 mm/min (n=10). The surface roughness (Sa) measurement and surface morphology analysis without alumina-blasting pressure (untreated) and with alumina-blasting pressures (0.1 MPa, 0.2 MPa and 0.4 MPa) for three different zirconia grades were evaluated with 3D-Laser Scanning Confocal Microscope.

Results: Different alumina-blasting pressures and different storage periods affected the bonding of resin cement to translucent zirconia. The Weibull moduli increased in some groups after 150 days storage. After 1 day and 30 days storage, 0.4 MPa alumina-blasting pressure provided superior bond strength, however, after 150 days, 0.2 MPa gave reliable and stable bond strength.

Significance: Alumina-blasting pressure of 0.2 MPa was the most effective for reliable and durable bonding performance to translucent zirconia after long-term water storage.

Keywords: Adhesion; Alumina blasting; Bonding durability; Resin cement; Translucent zirconia.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aluminum Oxide*
Dental Bonding*
Dental Stress Analysis
Materials Testing
Resin Cements
Surface Properties
Zirconium

Substances

Resin Cements
Zirconium
Aluminum Oxide
zirconium oxide