The assessment of impacted maxillary canine position with panoramic radiography and cone beam CT

The aim of this study was to correlate the position of impacted maxillary canines on panoramic radiography with cone beam CT (CBCT) and analyse the labiopalatal position of canines and root resorption of permanent incisors in CBCT according to the mesiodistal position of canines on panoramic radiogr...

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Bibliographic Details
Published in:Dento-maxillo-facial radiology 2012-07, Vol.41 (5), p.356-360
Main Authors: Jung, Y H, Liang, H, Benson, B W, Flint, D J, Cho, B H
Format: Article
Language:English
Subjects:
Adolescent
Adult
Chi-Square Distribution
Child
Cone-Beam Computed Tomography
Cuspid - diagnostic imaging
Dentistry
Female
Humans
Male
Maxilla - diagnostic imaging
Middle Aged
Radiography, Panoramic
Retrospective Studies
Tooth, Impacted - diagnostic imaging
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Summary:The aim of this study was to correlate the position of impacted maxillary canines on panoramic radiography with cone beam CT (CBCT) and analyse the labiopalatal position of canines and root resorption of permanent incisors in CBCT according to the mesiodistal position of canines on panoramic radiographs. This study was a retrospective radiographic review of 63 patients with 73 impacted maxillary canines. The mesiodistal position of the canine cusp tip was classified by sector location and analysed on 73 impacted canines from 63 panoramic radiographs. The labiopalatal position of the impacted canines and root resorption of permanent incisors were evaluated with CBCT. The sector location on panoramic radiographs was compared with the labiopalatal position of impacted maxillary canines on CBCT. The statistical correlation between panoramic and CBCT findings was examined using the χ(2) test and the Fisher's exact test. Labially impacted canines in CBCT were more frequent in Panoramic Sectors 1, 2 and 3, mid-alveolus impacted canines were more frequent in Sector 4 and palatally impacted canines were more frequent in Sector 5. There was a statistically significant association between the panoramic sectors of the impacted canines and the labiopalatal position of the canines (p < 0.001). Root resorption of permanent incisors showed a significant difference according to sector location (p < 0.001) and was observed in Sectors 3, 4 and 5. This study suggests that the labiopalatal position of impacted canines and resorption of permanent incisors might be predicted using sector location on panoramic radiography.
ISSN:0250-832X
1476-542X
DOI:10.1259/dmfr/14055036