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International Journal of Dentistry
Volume 2015, Article ID 135120, 9 pages
Research Article

Quality of Root Canals Performed by the Inaugural Class of Dental Students at Libyan International Medical University

1Department of Restorative Dentistry and Periodontology, School of Dentistry, Libyan International Medical University (LIMU), Benghazi, Libya
2University of Porto, Porto, Portugal
3Salt Lake City, UT, USA
4Faculty of Dentistry, EPIUNIT-ISPUP,, University of Porto, Porto, Portugal

Received 18 February 2015; Revised 29 April 2015; Accepted 18 May 2015

Academic Editor: Sema Belli

Copyright © 2015 Ranya F. Elemam et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. The purpose of this study was to radiographically evaluate technical quality of root canal fillings performed by dental undergraduates at Libyan International Medical University in Libya. Methods. Root canal cases were treated at university dental clinic from the fall of 2012 to the fall of 2013 by the fourth and fifth year dental students. Students used step-back preparation and cold lateral compaction in the treatment. Radiographs were reviewed over a two-year period from initial procedure to final restoration. Radiographs were evaluated for adequacy or inadequacy by length, density, and taper. Length inadequacy was classified as short or overextended. Overall quality was considered “adequate” based on all three variables. Chi-square tested differences between teeth groupings and adequacy classification. Significant value results were adjusted by Bonferroni correction. Results. Adequate length of root canal fillings were observed in roughly half of all samples (48.6%). Density was adequate in 75.8% of the samples. Taper was observed as adequate in 68.8%. Higher quality was evident in anterior teeth (plus premolars) versus molars (65.6% versus 43.3%, resp.; ). Conclusion. Overall quality of endodontic treatment performed by undergraduate dental students was adequate in 53.9% of the cases. Significant opportunity exists to improve the quality of root canals provided by dental students.