PUSH OUT BOND STRENGTH OF DIFFERENT ROOT CANAL SEALERS USED WITH THE SINGLE CONE OBTURATION TECHNIQUE: AN VITRO STUDY

  • HOZAN TAWFIQ AHMED Dept. of Conservative, College of dentistry, University of Duhok, Kurdistan Region- Iraq.
  • ABDULKAREEM R. AL-MEZOURI Dept. of Conservative, College of dentistry, University of Duhok, Kurdistan Region- Iraq.
Keywords: Bond strength, Root canal, obturation Technique

Abstract

Aim: To evaluate and compare the push-out bond strength of four types of root canal sealers (zinc oxide eugenol (ZnO), AH Plus, EndoSeuence BC sealer and MTA Fillapex) used with single cone obturation.

 Materials and methods: Forty extracted sound human mandibular premolars roots were chosen for this study. After de-coronation of the teeth and separation of the desired roots & preparation of the desired root pieces, they were divided into 4 groups according to the sealer used; Group1: zinc oxide eugenol (ZOE), Group2: AH Plus, Group3: EndoSeqence BC sealer and Group4: MTA Fillapex) After obturation with the single cone obturation technique, each tooth was cut into three thirds, coronal, middle and apical. Each of three mm thickness then prepared for push-out assessment using a computerized universal testing machine with a speed of 0.5 mm/min, in Apical- coronal direction until the first displacement of the filling material, and then the results were analyzed statistically.

 Results: There was significant difference between the four types of materials with in favor of the Endosequence sealer (2.30 ±1.26) had the highest bond strength to the dentin walls followed by AH plus (1.70 ±1.20) while ZnO sealer had the lowest bond value (1.31 ± 0.88).

Conclusion: The sealer cement BC Sealer provided the best adhesion in all thirds of the root canal added to its bio active properties or bioinert materials is a function of their interaction with the surrounding living tissue.

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Published
2020-06-02
How to Cite
AHMED , H. T., & AL-MEZOURI, A. R. (2020). PUSH OUT BOND STRENGTH OF DIFFERENT ROOT CANAL SEALERS USED WITH THE SINGLE CONE OBTURATION TECHNIQUE: AN VITRO STUDY. Journal of Duhok University, 22(2), 151-158. https://doi.org/10.26682/sjuod.2019.22.2.17
Section
Pure and Engineering Sciences