Skip Navigation



The European Journal of Orthodontics Advance Access published online on July 13, 2007
The European Journal of Orthodontics, doi:10.1093/ejo/cjm016
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
29/4/408    most recent
cjm016v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Apajalahti, S.
Right arrow Articles by Peltola, J. S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Apajalahti, S.
Right arrow Articles by Peltola, J. S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2007. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Apical root resorption after orthodontic treatment—a retrospective study

Satu Apajalahti and Jaakko Sakari Peltola

Department of Dental Radiology, Institute of Dentistry, University of Helsinki, Finland

Address for correspondence Satu Apajalahti, Department of Dental Radiology, Institute of Dentistry, P.O. Box 41, 00014 University of Helsinki, Helsinki, Finland, E-mail: satu.apajalahti{at}helsinki.fi


  Abstract

The purpose of the study was to compare the incidence and severity of apical root resorption in patients treated with different orthodontic appliances and to evaluate the effect of treatment duration on the degree of apical root resorption. A further aim was to analyse the degree of apical root resorption in different tooth groups in patients presenting with root resorption.

The sample consisted of 625 patients (269 males, 356 females) aged 8–16 years at the beginning of treatment. Active removable plates and fixed appliances were used most frequently. Following exclusion of poor quality radiographs, the final sample included 601 patients (348 females, 253 males). Root resorption in all tooth groups, except third molars, was evaluated from pre- and post-treatment panoramic radiographs. The correlation of root resorption with treatment modality and duration was studied using multinomial logistic regression analysis.

Of the tooth groups, maxillary incisors showed apical root resorption most frequently, followed by the mandibular incisors. Root resorption was significantly correlated with fixed appliance treatment (P < 0.001). In addition, the duration of fixed appliances treatment was found to contribute significantly (P < 0.01) to the degree of root resorption. The mean duration of treatment in patients without root resorption was 1.5 years, whereas in those with severe resorption was 2.3 years. The most severe resorption was seen in the maxillary incisors and premolars.

It is concluded that with a long duration of fixed appliance treatment, the risk of severe resorption increases. In patients where treatment is prolonged, a 6-month radiographic follow-up is recommended.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Eur J OrthodHome page
W. Hahn, J. Fialka-Fricke, H. Dathe, S. Fricke-Zech, A. Zapf, R. Gruber, D. Kubein-Meesenburg, and R. Sadat-Khonsari
Initial forces generated by three types of thermoplastic appliances on an upper central incisor during tipping
Eur J Orthod, December 1, 2009; 31(6): 625 - 631.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.