Does reduced taper canal preparation increase the load capacity of endodontically treated teeth?
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Vol 15 No 2 (2024), Original Article
Vol 15 No 2 (2024)

Does reduced taper canal preparation increase the load capacity of endodontically treated teeth?

Original Article
https://doi.org/10.70174/iajd.v15i2.1032
Published 1 November 2024
Mostafa M.A. ELKHOLY
BDS, MSc, PhD. Senior Lecturer of Endodontics, School of Dentistry, The University of Western Australia, Perth, WA, Australia
Omar Mahmoud NOURELDIN
BDS. Master’s degree Student, department of endodontics, Faculty of Dentistry, The British University in Egypt, Cairo, Egypt
Hala Fayek KHALIL
BDS, MSc, PhD. Associate Professor of endodontics, department of Endodontics, Faculty of Dentistry, The British University in Egypt, Cairo, Egypt
Shehabeldin M. SABER
BDS, MSc, PhD. Professor of Endodontics, department of Endodontics, Faculty of Dentistry, The British University in Egypt, Cairo, Egypt. Dental Science Research Group Lead, Health Research Center of Excellence, Faculty of Dentistry, The British University in Egypt, Cairo, Egypt
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Keywords

root canal taper
rotary nickel titanium
load capacity
fracture resistance

How to Cite

ELKHOLY, M. M., NOURELDIN, O. M., KHALIL, H. F., & SABER, S. M. (2024). Does reduced taper canal preparation increase the load capacity of endodontically treated teeth?. International Arab Journal of Dentistry (IAJD), 15(2), 46-53. https://doi.org/10.70174/iajd.v15i2.1032
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Abstract

Objectives: The aim of this in-vitro study is to assess and compare the load capacity of teeth with canals prepared using progressive taper versus regressive taper.

Methods: Twenty-seven extracted mandibular molars were categorized into three equal groups. The negative control group involved teeth that were accessed and restored with composite resin without canal preparation. The regressive canal preparation group used the TruNatomy file system, while the progressive canal preparation group employed the ProTaper Gold system. Subsequently, all samples underwent loading using a universal testing machine until tooth fracture occurred. The force required to fracture each tooth was recorded in Newton.

Results: The highest value was found in samples without preparation 1009.68±57.28 N, followed by TN group 979.04±31.16 N, while the lowest value was found in PTG 966.47±17.51N. There was no significant difference between different groups (p=0.118).

Conclusions: The root canal taper did not exert a significant influence on the longevity or fracture resistance of the tooth.

https://doi.org/10.70174/iajd.v15i2.1032
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