J Korean Acad Prosthodont.  2013 Jan;51(1):27-32. 10.4047/jkap.2013.51.1.27.

Shear bond strength of a self-adhesive resin cement to resin-coated dentin

• Hong JY
• Park CW
• Heo JU
• Bang MK
• Ryu JJ

• KMID: 2000183
• DOI: http://doi.org/10.4047/jkap.2013.51.1.27

Abstract

PURPOSE
The aims of this study were to evaluate the effect of a resin coating on the shear bond strength of indirect composite restoration bonded to dentin with a self adhesive resin cement and to compare the shear bond strength with that of a conventional resin cement.
MATERIALS AND METHODS
The occlusal enamels of thirty six extracted non-carious human molars were removed until the dentin flat surfaces of the teeth were exposed. Then, they were divided into 3 groups. The dentin surfaces of group 1 and 3 were left without any conditioning, while the dentin surfaces of group 2 were resin-coated with Clearfil SE bond and a flowable resin composite, Metafil Flo. After all specimens were temporized for 24 hours, indirect composite resin blocks fabricated by Tescera were bonded to dentins by Unicem for group 1 and 2, and by Panavia F for group 3. After 48 hours of water storage, shear bond strengths were measured. The data was analyzed with one-way analysis of variance and multiple comparison test (Tukey method).
RESULTS
The shear bond strengths of Unicem applied to resin coated dentin surfaces were significantly higher than those of Unicem and Panavia F used to uncoated dentin surfaces (P<.0001).
CONCLUSION
Application of a resin coating to the dentin surface significantly improved the shear bonding strength of a self adhesive resin cement in indirect restoration.

Keyword

Resin cement; Resin coating; Shear bond strength; Indirect composite resin restoration

MeSH Terms

Adhesives
Composite Resins
Dental Enamel
Dentin
Humans
Molar
Resin Cements
Tooth
Water
Adhesives
Composite Resins
Resin Cements
Water

Figure

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  Fig. 1. Specimen preparation for shear bond strength test.

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  Fig. 2. Schematic diagram of shear bond strength test.

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