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Year : 2012  |  Volume : 1  |  Issue : 2  |  Page : 111-115

Evaluation of push-out bond strengths of two different adhesive root canal obturation systems: An in vitro study

Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India

Correspondence Address:
Jyothi Mandava
Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Gandhi Nagar, Rushikonda, Visakhapatnam - 530045, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2277-8632.98356

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Background: Bonded obturations of the root canal are important to eliminate any space that allows the percolation of fluids, to resist disruptions in the filling due to mechanical stresses, and to possibly reinforce roots. Aim: To evaluate the regional bond strength of two adhesive endodontic obturating systems - EndoREZ and RoekoSeal. Methods and Materials: Thirty extracted human maxillary central incisors were decoronated at the cemento-enamel junction. After cleaning and shaping of the root canals, the samples were randomly divided into two groups of 15 specimens each. In group A, samples were obturated using EndoREZ sealer and size #35, 0.06 taper EndoREZ points. In group B, samples were obturated with RoekoSeal sealer and size #35, 0.06 taper gutta-percha points. Each root was then sectioned into one mm thick slices with the help of a diamond saw under water coolant. The root slices were then subjected to push-out bond strength test in universal testing machine at a crosshead speed of 0.5 mm/min. After calculating the bond strength for each slice, data was subjected to student paired t-test. Results: The results showed statistically significant (P value < 0.05) higher mean bond strength for EndoREZ, when compared to RoekoSeal. Bond strength values showed a slightly increasing trend from coronal to apical regions, though the values are statistically insignificant. Conclusion: Under the conditions and scope of this study it can be concluded that EndoREZ performed better with higher mean push-out bond strength than RoekoSeal.

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