Journal of Conservative Dentistry
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Year : 2012  |  Volume : 15  |  Issue : 2  |  Page : 123-126

Effects of curing mode of resin cements on the bond strength of a titanium post: An intraradicular study

1 Biomaterials and Prosthodontics Unit, School of Dental Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
2 Dental Officer, Hospital Sultan Ismail, 81100 Johor Bahru, Johor, Malaysia

Correspondence Address:
Fazal Reza
School of Dental Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan
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Source of Support: Short term grant, No. 304/ PSG/61311004’ of Universiti Sains Malaysia, Conflict of Interest: None

DOI: 10.4103/0972-0707.94576

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Aim: To compare push-out bond strength between self-cured and dual-cured resin cement using a titanium post. Background: Dual-cured resin cements have been found to be less polymerized in the absence of light; thus the bond strength of cements would be compromised due to the absence of light with a metallic post. Materials and Methods: Ten extracted teeth were prepared for cement titanium PARAPOST, of five specimens each, with Panavia F [dual-cured (PF)] and Rely×Luting 2 [self-cured resin-modified glass ionomer luting cement (RL)]; the push-out bond strength (PBS) at three different levels of the sectioned roots was measured. The failure modes were observed and the significance of the differences in bond strength of the two types of cement at each level and at different levels of the same type was analyzed with non-parametric tests. Results: The push-out bond strength of the RL group was greater at all the three levels; with significant differences at the coronal and middle levels (P<0.05). No significant differences in PBS at different levels of the same group were observed. Cement material around the post was obvious in the PF group. The failure mode was mostly adhesive between the post and resin cement in the RL group. Conclusion: Bond strength was greater with self-cured, resin-modified glass ionomer luting cement, using titanium post.

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