A comparative in vitro study to evaluate fracture resistance and failure modes of individual polyether ketone ketone posts and cores

Authors

  • Naif Ghanem Tishreen University
  • Naser Baherly Tishreen University
  • Hazem Hassan Tishreen University

Abstract

This study aims to evaluate the fracture resistance and failure patterns of individual polyether ketone ketone (PEKK ) posts and cores restoring indodontically treated premolars. 20 mandibular first premolars ex-tracted for orthodontic reasons were cut above the cementoenamel junction by 2mm. En-dodontic treatment was performed, then samples randomly distributed to two groups, Group 1: Restored with individual milled polyether ketone ketone posts and cores. Group 2: Restored with prefabricated fiberglass -reinforced resin posts and composite cores buildups. The samples were subjected to shear forces at an angle of 45 until the failure oc-curred. The values were recorded in Newton, and the patterns of failure were examined. Statistical analyses were performed using SPSS software (Version 20). The T student test was used for independent groups and the x2 test at a significance level (a=0.05)

Results: T-student test showed no statistically significant differences between the means of fracture resistance in the two groups (P= 0.738> 0.05). The mean fracture resistance in group (1) was (423.2 ± 113.28) Newton, while in the group (2) (439.5 ± 100.616) Newton.  For failure patterns, the X2 test showed no difference between the two groups (P=0.371>0.05).

Conclusion: Within the limitations of this study, individual polyether ketone posts can be used in restoring endodontically compromised premolars.

Downloads

Published

2022-11-13

How to Cite

1.
غانم ن, بهرلي ن, حسن ح. A comparative in vitro study to evaluate fracture resistance and failure modes of individual polyether ketone ketone posts and cores. Tuj-hlth [Internet]. 2022Nov.13 [cited 2024Nov.24];44(5):103-14. Available from: https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/12908

Issue

Vol. 44 No. 5 (2022): Tishreen University Journal for Research and Scientific Studies - Health Sciences Series

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Health Sciences Series

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in  Tishreen University Journal for Research and Scientific Studies - Health Sciences Series   .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of  Tishreen University Journal for Research and Scientific Studies - Health Sciences Series  Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

1 2 3 > >>