Fracture Resistance and Failure Modes of Endodontically Treated Molars Restored by Endocrowns Made of Glass Ceramic or Indirect Composite Resin (an in-vitro study)

Authors

  • Essam Jamous Damascus University
  • Yasmine Glaungi Damascus University

Abstract

Objective: The aim of this study was to evaluate the fracture resistance of molars restored with endocrowns made of glass-ceramic (LDS) and indirect composite.

Materials and Methods: 36 extracted molars were divided into three groups. Teeth in group1 (intact) were left without treatment. Remaining teeth were sectioned 2mm above CEJ and undergone to standardized preparation. Endocrown restorations made of LDS were used for group2 (e-max), while indirect composite was used for group3 (composite). A compressive axial load was applied until failure. Fracture loads and failure modes were recorded. Statistically analysis was performed using one-way analysis of variance.

Results: Mean fracture strength of group (e-max) was (4842 N) and showed significantly higher value than that of other two groups, whilst mean fracture loads of groups (composite) and (intact) did not show statistically differences (3016 and 2708 N respectively). All specimens of groups (e-max) and (composite) exhibited irreparable fractures, while failure modes of (intact) ranged between repairable and irreparable.

Conclusion: Endocrowns made of indirect composite can be used to restore endodontically treated molars as they provide the ability to modify and repair if necessary.

Author Biographies

Essam Jamous, Damascus University

Assistant Professor - Fixed Dental Compensation Department - Faculty of Dentistry

Yasmine Glaungi, Damascus University

Postgraduate Student (Master) - Fixed Dental Compensation Department - Faculty of Dentistry

Downloads

Published

2020-11-13

How to Cite

1.
جاموس ع, غلاونجي ي. Fracture Resistance and Failure Modes of Endodontically Treated Molars Restored by Endocrowns Made of Glass Ceramic or Indirect Composite Resin (an in-vitro study). Tuj-hlth [Internet]. 2020Nov.13 [cited 2024Apr.27];42(5). Available from: https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/10079

Issue

Vol. 42 No. 5 (2020): Tishreen University Journal for Research and Scientific Studies - Medical 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.