Effect Of Eugenol On Microtensile Bond Strength Of Three Resin-cements (original) (raw)

Abstract

Objective: To evaluate the effects of dentine contaminated with eugenol liquid on the microtensile bond strength of three resin cements Methods: A self adhesive system, Rely X Unicem, and self-etching systems, Panavia F 2.0 and NX3 , were used. The occlusal enamel and superficial dentine of thirty non-carious human third molars were removed and then the dentine surface was ground with silicon carbide paper. Half of the prepared teeth were applied with eugenol liquid three times on the dentine surface then they were kept in plastic container at 37 degree celcius for 24 hours. The cylindrical resin composite blocks (8 mm in diameter and 6 mm in thickness) were luted to human dentine using resin cements (RelyX Unicem, Panavia F2.0, NX3) with/without pre-treatment by eugenol liquid. After storage in water for 24 hours, the bonded teeth were sectioned into 1 mm x 1 mm composite-dentine beams according to the non-trimming technique for the microtensile testing. The specimens were then sub...

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