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Evaluation of the relationship between impacted canines and three-dimensional sella morphology

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Abstract

Purpose

The purpose of this study was to assess the three-dimensional morphometric features of the sella turcica using cone beam computed tomography (CBCT) in subjects with unilateral and bilateral maxillary impacted canines and normal controls.

Methods

In this retrospective study, CBCT images captured with ultra-low dose protocol of 73 subjects (21 males, 52 females; mean age 20.01 ± 6.53 years) with unilateral or bilateral maxillary impacted canines (29 unilateral and 29 bilateral) and 15 controls were evaluated. Nineteen different measurements of the pituitary fossa were made on CBCT images. To evaluate the normality, the Kolmogorov–Smirnov test was used. The nonparametric statistical Kruskal–Wallis and Mann–Whitney U tests were applied to analyze the significant differences among and between the groups. Statistical significance was set at 5%.

Results

No measurement differed significantly among the groups (all p > 0.05) other than the right sella length, which differed between the unilateral and bilateral test groups and the unilateral test group and controls (both p < 0.05). The bilateral test group and control group did not differ significantly, but both exhibited greater right sella length than did the unilateral test group (p > 0.05).

Conclusions

Other than the right sella length, there were no among-group differences in the mean pituitary fossa measurements of subjects with impacted unilateral and bilateral canines and normally erupted canines. The right sella length was lower in subjects with impacted unilateral canines than in those with bilateral impacted canines and normal controls.

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Authors and Affiliations

  1. Department of Orthodontics, Faculty of Dentistry, Eskisehir Osmangazi University, Eskisehir, 26240, Turkey

    Mehmet Ugurlu, Fatih Kahraman, Rıdvan Oksayan & Ilhan Metin Dagsuyu

  2. Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskisehir Osmangazi University, Eskisehir, 26240, Turkey

    Ibrahim Sevki Bayrakdar

Authors
  1. Mehmet Ugurlu
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  2. Ibrahim Sevki Bayrakdar
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  3. Fatih Kahraman
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  4. Rıdvan Oksayan
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  5. Ilhan Metin Dagsuyu
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Contributions

Each author is expected to have made substantial contributions to the conception. ISB design of the work; FK the acquisition, analysis, RO and MU interpretation of data; ISB the measurement and evaluation of images; IMD have drafted the work or substantively revised it.

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Correspondence to Ibrahim Sevki Bayrakdar.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Additional informed consent was obtained from all individual participants included in the study.

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Ugurlu, M., Bayrakdar, I.S., Kahraman, F. et al. Evaluation of the relationship between impacted canines and three-dimensional sella morphology. Surg Radiol Anat 42, 23–29 (2020). https://doi.org/10.1007/s00276-019-02328-2

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  • DOI: https://doi.org/10.1007/s00276-019-02328-2

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