Influence of surface treatment of contaminated zirconia on surface free energy and resin cement bonding

Ryo Ishii, Akimasa Tsujimoto, Toshiki Takamizawa, Keishi Tsubota, Takayuki Suzuki, Yutaka Shimamura, Masashi Miyazaki

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Influences of contamination and cleaning methods on the bonding of resin cement to zirconia ceramics were examined. Airborne particle-abraded zirconia (IPS e.max ZirCAD) specimens were contaminated with saliva and cleaned with tap water (SC) or by application of 37% phosphoric acid (PA), Ivoclean (IC), or additional airborne particle abrasion (AB). Specimens without contamination served as controls. After application of Monobond Plus to the surface of the specimens, resin cement was mixed and inserted into a mold. Surface free energies of the specimens were determined by measuring contact angles. Surface treatment and storage conditions significantly influenced bond strength, while there was no significant interaction between the two factors. Surface free energies of the SC and IC groups were significantly lower than those of the other groups. Additional AB of saliva-contaminated zirconia increased the strength of bonding with the resin cement as well as increased surface free energy.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalDental Materials Journal
Volume34
Issue number1
DOIs
Publication statusPublished - 2015

Keywords

  • Bond strength
  • Resin cement
  • Surface free energy
  • Zirconia ceramics

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