J Adv Prosthodont.  2017 Dec;9(6):447-452. 10.4047/jap.2017.9.6.447.

Effects of Hybrid Coat on shear bond strength of five cements: an in vitro study

• Guo Y
• Zhou HD
• Feng YZ

• KMID: 2398049
• DOI: http://doi.org/10.4047/jap.2017.9.6.447

Abstract

PURPOSE
To evaluate the sealing performance of Hybrid Coat and its influence on the shear bond strength of five dentin surface cements.
MATERIALS AND METHODS
Six premolars were pretreated to expose the dentin surface prior to the application of Hybrid Coat. The microscopic characteristics of the dentinal surfaces were examined with scanning electron microscopy (SEM). Then, 40 premolars were sectioned longitudinally, and 80 semi-sections were divided into a control group (untreated) and a study group (treated by Hybrid Coat). Alloy restoration was bonded to the teeth specimen using five different cements. Shear bond strength was measured by the universal testing machine. The fracture patterns and the adhesive interface were observed using astereomicroscope.
RESULTS
SEM revealed that the lumens of dentinal tubules were completely occluded by Hybrid Coat. The Hybrid Coat significantly improved the shear bond strength of resin-modified glass ionomer cement (RMGIC) and resin cement (RC) but weakened the performance of zinc phosphate cement (ZPC), zinc polycarboxylate cement (ZPCC) and glass ionomer cement (GIC).
CONCLUSION
Hybrid Coat is an effective dentinal tubule sealant, and therefore its combined use with resin or resin-modified glass ionomer cements can be applied for the prostheses attachment purpose.

Keyword

Hybrid Coat; Cement; Shear Bond Strength

MeSH Terms

Adhesives
Alloys
Bicuspid
Dentin
Glass Ionomer Cements
In Vitro Techniques*
Microscopy, Electron, Scanning
Polycarboxylate Cement
Prostheses and Implants
Resin Cements
Tooth
Zinc Phosphate Cement
Adhesives
Alloys
Glass Ionomer Cements
Polycarboxylate Cement
Resin Cements
Zinc Phosphate Cement