Apical resorption in teeth with periapical lesions: Correlation between radiographic diagnosis and SEM examination
Version of Record online: 6 OCT 2009
© 2009 The Authors. Australian Endodontic Journal © 2009 Australian Society of Endodontology
Australian Endodontic Journal
Volume 39, Issue 1, pages 2–7, April 2013
How to Cite
Vier-Pelisser, F. V., de Figueiredo, J. A. P., Reis Só, M. V., Estivallet, L. and Eickhoff, S. J. (2013), Apical resorption in teeth with periapical lesions: Correlation between radiographic diagnosis and SEM examination. Australian Endodontic Journal, 39: 2–7. doi: 10.1111/j.1747-4477.2009.00196.x
- Issue online: 6 OCT 2009
- Version of Record online: 6 OCT 2009
- external apical resorption;
- radiograph diagnosis;
This study correlated the radiographic findings and scanning electron microscopy (SEM) images of external apical resorption (EAR) in teeth with periapical lesions. Standard radiographs were taken from 45 teeth with periapical lesions before their extraction. Using a radiographic examination, the root apex of each tooth was classified according to the EAR into the following categories: radiographic external apical resorption (REAR) absent, superficial and deep. The apical root surface was also examined with SEM. Photomicrographs of EARs were classified as periforaminal (PEAR) and foraminal (FEAR) in three degrees: 0, 1 and 2. REAR was present in 72.5% of cases, of which 20% were deep. Based upon SEM analysis, PEAR and FEAR occurred in 75.6% and 66.7% of cases respectively; 51.2% and 59% respectively, of these teeth received a score of 2. Only 15.4% of the specimens were unaffected by EAR.
When teeth with periapical lesions were examined for EAR with both radiography and by SEM, there was no correlation between the findings.