Effect of oxygen inhibition in universal adhesives on dentin bond durability and interfacial characteristics.

Abstract

PURPOSE:

To evaluate the effects of oxygen inhibition of universal adhesive on dentin bond durability and interfacial characteristics.

METHODS:

The three universal adhesives used were Scotchbond Universal Adhesive, Prime & Bond Elect, and G-Premio Bond. Shear bond strength (SBS) and shear fatigue strength (SFS) of resin composite bonded to adhesive with and without an oxygen inhibited layer (OIL) on dentin using total-etch and self-etch modes were determined. Surface free energy (SFE) and SFE parameters of cured adhesive with and without an OIL on dentin using total-etch and self-etch modes were also measured by the sessile drop method.

RESULTS:

The presence of an OIL in universal adhesives promoted higher SBS and SFS regardless of etching mode. In addition, regardless of adhesive type and etching modes, the specimens with an OIL showed a higher ratio of SFS/SBS than those without an OIL. Further, the SFEs, especially total SFE, polarity force and hydrogen bonding force, of cured adhesives with an OIL were significantly higher than those without an OIL.

CLINICAL SIGNIFICANCE:

The present findings indicated that the oxygen inhibition of universal adhesive did not impair the dentin bond durability and interfacial characteristics of the adhesive.

• Authors: Akimasa Tsujimoto, Wayne W Barkmeier, Toshiki Takamizawa, Mark A Latta, Masashi Miyazaki
• Journal: American journal of dentistry (Am J Dent) Vol. 30 Issue 2 Pg. 71-76 (Apr 2017) ISSN: 0894-8275 [Print] United States
• PMID: 29178767 (Publication Type: Journal Article)

Chemical References

• Composite Resins
• Dental Materials
• Dentin-Bonding Agents
• G-Bond
• Methacrylates
• Polymethacrylic Acids
• Prime & Bond
• Resin Cements
• Bisphenol A-Glycidyl Methacrylate
• Scotchbond

Topics

• Acid Etching, Dental
• Bisphenol A-Glycidyl Methacrylate
• Composite Resins (chemistry)
• Dental Bonding (methods)
• Dental Materials (chemistry)
• Dental Stress Analysis
• Dentin-Bonding Agents (chemistry)
• In Vitro Techniques
• Materials Testing
• Methacrylates
• Polymethacrylic Acids
• Resin Cements (chemistry)
• Shear Strength
• Surface Properties