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Influence of surface treatment of contaminated zirconia on surface free energy and resin cement bonding
Journal article   Open access   Peer reviewed

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 and Masashi Miyazaki
Dental materials journal, Vol.34(1), pp.91-97
2015
DOI: 10.4012/dmj.2014-066
PMID: 25748464
url
https://doi.org/10.4012/dmj.2014-066View
Published (Version of record) Open Access

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.
Materials Testing Air Abrasion, Dental Decontamination - methods Dental Bonding - methods Dental Cements In Vitro Techniques Phosphoric Acids Resin Cements - chemistry Saliva Surface Properties Water Zirconium - chemistry

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