The evaluation of displacement resistance of glass FRC posts to root dentine using a thin slice push-out test

  1. M. Toman1,
  2. S. Toksavul1,
  3. M. Sarıkanat2,
  4. K. Firidinoğlu1,
  5. A. Akın1

Article first published online: 22 JUN 2009

DOI: 10.1111/j.1365-2591.2009.01586.x

Issue

International Endodontic Journal

International Endodontic Journal

Volume 42, Issue 9, pages 802–810, September 2009

Additional Information

How to Cite

Toman, M., Toksavul, S., Sarıkanat, M., Firidinoğlu, K. and Akın, A. (2009), The evaluation of displacement resistance of glass FRC posts to root dentine using a thin slice push-out test. International Endodontic Journal, 42: 802–810. doi: 10.1111/j.1365-2591.2009.01586.x

Author Information

  1. 1

    Department of Prosthetic Dentistry, Faculty of Dentistry

  2. 2

    Department of Mechanics, Faculty of Engineering, Ege University, İzmir, Turkey

* Dr Muhittin Toman, Department of Prosthetic Dentistry, Faculty of Dentistry, Ege University, Bornova-İzmir 35100, Turkey (Tel.: +90 232 388 03 27; fax: +90 232 388 03 25; e-mail: tomantr@yahoo.com).

Publication History

  1. Issue published online: 6 AUG 2009
  2. Article first published online: 22 JUN 2009
  3. Received 16 October 2008; accepted 19 March 2009

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Keywords:

  • etch-and-rinse;
  • glass-fiber post;
  • self-adhesive;
  • self-etch

Abstract

Aim  To investigate and compare the displacement resistance of glass fibre reinforced composite (FRC) posts to root dentine after luting with different adhesive systems.

Methodology  A total of 32 noncarious extracted human mandibular premolars were prepared for post-cementation using the FRC Postec system (Ivoclar Vivadent, Schaan, Liechtenstein) and divided into four groups (n = 8). The posts in each group were luted with one or other of the following materials. Group 1: Variolink II/Excite DSC (etch-and-rinse, dual-curing), group 2: Clearfil Esthetic Cement/ED Primer II (self-etch, dual-curing), group 3: Multilink/Multilink Primer (self-etch, chemical-curing) and group 4: Multilink Sprint (self-adhesive, dual-curing). Specimens were sectioned to obtain slices with the post in the centre and with the root dentine overlaid by the autopolymerizing acrylic resin on each side. The displacement resistance was measured using a Universal Testing Machine at a crosshead speed of 0.5 mm min−1. The displacement resistance of the specimens were calculated and expressed in MPa. Data were analysed with one-way anova and post hoc Tukey’s test (P < 0.05).

Results  Mean (SD) values of displacement resistance data in MPa are as follows: group 1, 12.08 (2.13); group 2, 12.39 (2); group 3, 11.3 (1.23); group 4, 14.29 (1.84). There were statistically significant differences amongst the groups (P = 0.021). A statistically significant difference was observed for the displacement resistance values between groups 3 and 4 (P = 0.015), that is between Multilink/Multilink Primer and Multilink Sprint.

Conclusions  Glass FRC posts luted with self-adhesive luting system exhibited higher displacement resistance than when luted with chemical-curing self-etch luting system.

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