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Title

Age-Dependent Three-Dimensional Evaluation of the Spheno-Occipital Synchondrosis Using Computed Tomography

Pages

  0-0

Abstract

 Background: The Spheno-Occipital Synchondrosis (SOS) is an important growth center which plays an important role in cranial base development and can defi ne the fi nal relation of SOS with the upper and lower jaws. The morphology and fusion degree of SOS varies in diff erent ages among diff erent populations. Objectives: Thus, the aim of this study was to evaluate the age and sex dependence of ossifi cation of the Spheno-Occipital Synchondrosis in the Iranian population using CBCT. Methods: This cross-sectional retrospective study was performed on 517 CBCT images of 6-to 18-year-old patients in Mashhad, Iran. Patients with obvious pathology or fractures were excluded from the study. The SOS ossifi cation was classifi ed into four stages from 0 to 3. Two independent observers scored the images. The ossifi cation stage of the SOS was classifi ed according to the age and sex of the patients. Kruskal-Wallis and Kendall’ s tau-b used for statistical analysis. Results: In this study, 517 samples of 260 females (50. 3%) and 257 males (49. 7%) with a mean age of 12. 03  3. 74 years were examined. A signifi cant diff erence did not exist between males and females regarding their stage of SOS ossifi cation, although males were younger at the SOS transitional stages of 0 to 1, and 1 to 2 compared to females. Also, the SOS starts the ossifi cation process at the age of 11 in females and 10. 8 in males. Conclusions: The present study showed in the mean age of 16. 81  1. 12 years, most subjects were in developmental stage 3. Due to the fact that in developmental stage 3 SOS closes, there were no passive maxillary growth after this time. In none of the SOS stages, females and males diff ered signifi cantly in mean age (P > 0. 05). The age of the onset of SOS closure in females was 11 years and in males it was about 10. 8 years.

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    APA: Copy

    JAHANBIN, AREZOO, Shirazi, Shirin Dokht, Kamyabnezhad, Elaheh, ESLAMI, NEDA, & Hoseini Zarch, Seyed Hosein. (2020). Age-Dependent Three-Dimensional Evaluation of the Spheno-Occipital Synchondrosis Using Computed Tomography. IRANIAN JOURNAL OF ORTHODONTICS, 15(1), 0-0. SID. https://sid.ir/paper/696849/en

    Vancouver: Copy

    JAHANBIN AREZOO, Shirazi Shirin Dokht, Kamyabnezhad Elaheh, ESLAMI NEDA, Hoseini Zarch Seyed Hosein. Age-Dependent Three-Dimensional Evaluation of the Spheno-Occipital Synchondrosis Using Computed Tomography. IRANIAN JOURNAL OF ORTHODONTICS[Internet]. 2020;15(1):0-0. Available from: https://sid.ir/paper/696849/en

    IEEE: Copy

    AREZOO JAHANBIN, Shirin Dokht Shirazi, Elaheh Kamyabnezhad, NEDA ESLAMI, and Seyed Hosein Hoseini Zarch, “Age-Dependent Three-Dimensional Evaluation of the Spheno-Occipital Synchondrosis Using Computed Tomography,” IRANIAN JOURNAL OF ORTHODONTICS, vol. 15, no. 1, pp. 0–0, 2020, [Online]. Available: https://sid.ir/paper/696849/en

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