Fulltext

Impacted maxillary canines and root resorptions of neighbouring teeth: a radiographic analysis using cone-beam computed tomography

Lai, Caroline S. ; Bornstein, Michael M. ; Mock, Lothar ; Heuberger, Benjamin M. ; Dietrich, Thomas ; Katsaros, Christos

In: European Journal of Orthodontics, 2013, vol. 35, no. 4, p. 529-538

Aggiungi alla tua lista
    Titre
    • Impacted maxillary canines and root resorptions of neighbouring teeth: a radiographic analysis using cone-beam computed tomography
    Auteur
    • Lai, Caroline S.. Department of Orthodontics and Dentofacial Orthopedics
    • Bornstein, Michael M.. Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Switzerland
    • Mock, Lothar. Department of Orthodontics and Dentofacial Orthopedics
    • Heuberger, Benjamin M.. Clinic for Oral and Maxillofacial Surgery, Hospital of Luzern, Switzerland and
    • Dietrich, Thomas. Department of Oral Surgery, The School of Dentistry, University of Birmingham, UK
    • Katsaros, Christos. Department of Orthodontics and Dentofacial Orthopedics
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • European Journal of Orthodontics, 2013, vol. 35, no. 4, p. 529-538. Oxford University Press
    Autre version électronique
    Classification
    • Santé
    Identifiant OAI-PMH
    • oai:doc.rero.ch:296159
    Summary
    The study analyses the location of impacted maxillary canines and factors influencing root resorptions of adjacent teeth using cone-beam computed tomography (CBCT). In addition, the interrater reliability between observers of two different dental specialties for radiographic parameters will be evaluated. CBCT images of patients who were referred for radiographic localization of impacted maxillary canines and/or suspicion of root resorptions of adjacent teeth were included. The study analysed the exact three-dimensional location of the impacted canines in the anterior maxilla, frequency and extent of root resorptions, and potential influencing factors. To assess interrater agreement, Cohen's correlation parameters were calculated. This study comprises 113 patients with CBCT scans, and 134 impacted canines were analysed retrospectively. In the patients evaluated, 69 impacted canines were located palatally (51.49 per cent), 41 labially (30.60 per cent), and 24 (17.91 per cent) in the middle of the alveolar process. Root resorptions were found in 34 lateral incisors (25.37 per cent), 7 central incisors (5.22 per cent), 6 first premolars (4.48 per cent), and 1 second premolar (0.75 per cent). There was a significant correlation between root resorptions on adjacent teeth and localization of the impacted canine in relation to the bone, as well as vertical localization of the canine. Interrater agreement showed values of 0.546-0.877. CBCT provides accurate information about location of the impacted canine and prevalence and degree of root resorption of neighbouring teeth with high interrater correlation. This information is of great importance for surgeons and orthodontists for accurate diagnostics and interdisciplinary treatment planning