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Article

Microtensile bond strength of self-adhesive resin cements to enamel or dentin

Authors :
  • Yuttana Khuwuttayakorn D.D.S.
  • Chaiwat Maneenut D.D.S., MDSc., Ph.D.

Abstract :

Objective To compare microtensile bond strength at enamel or dentin-resin interface of self-etch
resin cements.

Material and methods Enamel or dentin surface of human third molars were flattened using a highspeed
diamond bur. Resin composite blocks (Filtex Z350) were bonded to tooth surface using a selfetch
resin cement (Panavia F 2.0) and three self adhesive resin cements (Rely X U100, Maxcem and
Multilink Sprint). The specimens were stored for 24 hours in distilled water at 37 ÌC, the specimens
were sectioned into hourglass shape and tested for μTBS testing at a cross-head speed of 1 mm/min.
Mean bond strength were analyzed with One-way ANOVA. Tamhane Multiple Comparison and Independent
Sample t-test (α=0.05).

Results Mean bond strength to enamel of Panavia F 2.0 was significantly higher than those of Rely X
U100, Maxcem and Multilink Sprint. The bond strength to dentin of Panavia F 2.0 was not significantly
different from that of Maxcem but significantly higher than those of Rely X U100 and Multilink Sprint.
Multilink Sprint showed the lowest bond strength to dentin. The bond strength to enamel and dentin of
Panavia F 2.0 and Maxcem were comparable. Meanwhile, higher bond strengths to enamel than to
dentin of Rely X U100 and Multilink Sprint were noticed.

Conclusion The bonding effectiveness of self-adhesive resin cements to enamel and dentin is lower
than that of a self-etch resin cement. Self adhesive resin cements showed no difference in bond
strength to enamel but vice versa in dentin.

(CU Dent J. 2008;31:201-12)



Keywords :
dentin; enamel; microtensile bond strength; self adhesive resin cement
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