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Cone-beam computed tomography evaluation of impacted and transmigrated mandibular canines: a retrospective study

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Abstract

Objectives

The purpose of this study is to evaluate CBCT images of impacted mandibular canines in detail and to discuss implications for diagnosis and treatment.

Methods

CBCT images of dental patients applied between December 2015 and December 2017 were evaluated retrospectively. 2591 CBCT images, including mandible in their field of view, were determined and evaluated regarding the presence of mandibular canine impaction. 66 impacted mandibular canines of 58 patients were analyzed in detail regarding their location, morphology, associated pathologies, and their relationship with the neighboring anatomic structures, the role of these factors on transmigration, as well as treatments applied. The Pearson Chi square test was used between the groups.

Results

Transmigration was observed in 53% of impacted mandibular canines. Teeth with transmigration were localized horizontally, below the apex of adjacent teeth frequently, and had no contact with mandibular cortical bone mostly. 62% of mandibular canines were in contact/proximity with the incisive mandibular canal. The most applied treatment for transmigrated teeth was surgical removal, followed by radiographic monitoring, but orthodontic traction was not preferred in any case. For non-transmigrated teeth, the most applied treatment options were surgical removal, orthodontic traction, and radiographic monitoring, respectively. Autotransplantation was not preferred in any case of impacted teeth. Vertical position of the crown tip (p < 0.05) and the presence of deciduous mandibular canines and their resorption showed significant relation to transmigration (p < 0.05).

Conclusion

Transmigration is common among impacted mandibular canines. Resorption of adjacent teeth roots was one of the possible complications of impaction and likely contact/proximity of incisive mandibular canal with impacted mandibular canines, which may pose difficulties in surgical treatment, can be better detected by CBCT.

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Acknowledgements

No external or internal funding was required since the study was a retrospective study using the archives of the Department of Oral and Maxillofacial Radiology. Authors thank to the Department of Tumor Pathology, Institute of Oncology, Istanbul University for their valuable contribution.

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Authors and Affiliations

  1. Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Istanbul University, Capa/Fatih, 34093, Istanbul, Turkey

    Hulya Cakir Karabas, Ilknur Ozcan, Ahmet Faruk Erturk, Beliz Guray & Sukriye Neslihan Senel

  2. Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Near East University, Nicosia, Cyprus

    Gurkan Unsal

Authors
  1. Hulya Cakir Karabas
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  2. Ilknur Ozcan
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  3. Ahmet Faruk Erturk
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  4. Beliz Guray
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  5. Gurkan Unsal
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  6. Sukriye Neslihan Senel
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Corresponding author

Correspondence to Hulya Cakir Karabas.

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This article does not contain any studies with human or animal subjects performed by the any of the authors.

Conflict of interest

Author Hülya ÇAKIR KARABAŞ, Author İlknur ÖZCAN, Author Ahmet Faruk ERTÜRK, Author Beliz GÜRAY, Author Gürkan Ünsal, and Author Şükriye Neslihan ŞENEL declare that they have no conflict of interest.

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Cakir Karabas, H., Ozcan, I., Erturk, A.F. et al. Cone-beam computed tomography evaluation of impacted and transmigrated mandibular canines: a retrospective study. Oral Radiol 37, 403–411 (2021). https://doi.org/10.1007/s11282-020-00464-9

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  • DOI: https://doi.org/10.1007/s11282-020-00464-9

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