Download PDF
Open Access
CC BY-NC-ND 4.0 · European Journal of General Dentistry 2021; 10(03): 139-143
DOI: 10.1055/s-0041-1736374
Original Article

Push-Out Bond Strength of Composite Polymerization Methods with Universal Adhesive to Coronal Dentin

Authors

  • Horieh Moosavi

    1   Department of Restorative and Cosmetic Dentistry, Dental Materials Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran

  • Fatemeh Rezaei 

    2   School of Dentistry, I.M. Sechenova Medical Institute, Moscow, Russia

  • Mohammad Fazli

    3   Dental Material Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran

  • Farzaneh Rakhshan 

    4   Department of Restorative and Cosmetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran

Funding This study was funded by the Mashhad University of Medical Sciences, Mashhad, Iran, supported the study.
Further Information
Also available at
  Permissions and Reprints

Abstract

Objective This in vitro study was aimed to determine the effect of composite polymerization methods with universal adhesive on push-out bond strength in coronal dentin.

Materials and Methods Using 48 healthy premolar teeth, the almost conical access cavities were excised to the canal entry. Cavity preparations were treated with a universal adhesive in the self-etch mode. Teeth were randomly divided into four groups (n = 12). It was used to restore the cavities with a bulk-fill composite; Tetric N-Ceram, a conventional composite; Filtek Z250, a dual-cure composite; Rebilda DC VOCO, and chemical cure composite; Master-Dent. After applying 10,000 thermal cycles, 1-mm incisions were made in coronal dentin, and slices were placed in a UTM machine in a special jig and tested for push-out bond strength at a crosshead speed of 0.5 mm/min. Data were analyzed using one-way analysis of variance and Games–Howell tests (p < 0.05).

Results The highest mean bond strength was of the conventional composite (18.36 ± 5.63) and the lowest mean of bond strength was for the dual-cure composite (5.10 ± 2.74). There was a significant difference among the means of bond strength for various composite resins curing (p < 0.001).

Conclusion The bulk-fill and conventional light-cured composites had higher bond strength than self- and dual-cured composite resins.

Keywords

push-out - resin composite - universal adhesive

Note

This study was based on the thesis by Dr. Mohammad Fazli.




Publication History

Article published online:
25 October 2021

© 2021. European Journal of General Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India