Journal Article

Early radiographic diagnosis of apical root resorption during orthodontic treatment: a study of maxillary incisors

E Levander, R Bajka and O Malmgren

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 20, issue 1, pages 57-63
Published in print February 1998 | ISSN: 0141-5387
Published online February 1998 | e-ISSN: 1460-2210 | DOI: http://dx.doi.org/10.1093/ejo/20.1.57
Early radiographic diagnosis of apical root resorption during orthodontic treatment: a study of maxillary incisors

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The purpose of this study was to evaluate the sensitivity of digital radiographs for detection of (i) simulated root resorption cavities in an experimental model and (ii) orthodontically-induced apical root resorption in vivo. The severity of root resorption after 3 and 6 months treatment was studied in relation to root form. The experimental study cavities, drilled in mandibular roots in a dry skull, were recorded in conventional and digital radiographs. In vivo root resorption was evaluated on digital radiographs of 92 maxillary incisors after 3 and 6 months treatment with fixed appliances.

The results showed a similar sensitivity for the two methods. Sensitivity increased significantly with cavity size. After 3 months apical root resorption was detected in only a few teeth. The number had increased significantly after 6 months. There was a higher degree of root resorption in teeth with blunt and pipette-shaped apices. In such teeth a 3-month radiographic control is recommended.

Journal Article.  0 words. 

Subjects: Restorative Dentistry and Orthodontics

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