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BioMed Research International
Volume 2018 (2018), Article ID 5152172, 7 pages
Research Article

Comparison between Two Radiological Methods for Assessment of Tooth Root Resorption: An In Vitro Study

Department of Dental Clinic, Catholic University of Sacred Heart of Rome, Rome, Italy

Correspondence should be addressed to Pier Carmine Passarelli

Received 9 December 2017; Revised 24 January 2018; Accepted 5 February 2018; Published 4 March 2018

Academic Editor: Roberto Cameriere

Copyright © 2018 Sabina Saccomanno 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.


Purpose. This study aims to verify the validity of the radiographic image and the most effective radiological techniques for the diagnosis of root resorption to prevent, cure, and reduce it and to verify if radiological images can be helpful in medical and legal situations. Methods. 19 dental elements without root resorption extracted from several patients were examined: endooral and panoramic radiographs were performed, with traditional and digital methods. Then the root of each tooth was dipped into 3-4 mm of 10% nitric acid for 24 hours to simulate the resorption of the root and later submitted again to radiological examinations and measurements using the same criteria and methods. Results. For teeth with root resorption the real measurements and the values obtained with endooral techniques and digital sensors are almost the same, while image values obtained by panoramic radiographs are more distorted than the real ones. Conclusions. Panoramic radiographs are not useful for the diagnosis of root resorption. The endooral examination is, in medical and legal fields, the most valid and objective instrument to detect root resorption. Although the literature suggests that CBCT is a reliable tool in detecting root resorption defects, the increased radiation dosage and expense and the limited availability of CBCT in most clinical settings accentuate the outcome of this study.