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  • Küçük Resim
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    Is there a relationship of nasal septum deviation with pharyngeal airway dimension and craniocervical posture?
    (TAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND, 2021) Sadry, Sanaz; Ok, Ufuk; Öner Özdaş, Didem
    Objective: This study aimed to evaluate the effects of nasal septum deviation on the pharyngeal airway and craniocervical posture measurements using cone beam computed tomography (CBCT). Methods: This retrospective study analyzed the CBCTs of 25 patients with and without nasal septum deviation. Various parameters defining the pharyngeal airway and craniocervical and facial skeletal morphology were measured and compared between the groups after confirming intraexaminer reliability. Results: Compared to the control group, the group with nasal septum deviation had a statistically significantly shorter nasopharyngeal length (p < 0.001), longer vertical airway length (p < 0.002), and larger cervical column curvature angle (p < 0.006). Conclusion: Children with a nasal septum deviation of 4 mm or more on their CBCT scan are susceptible to unfavorable pharyngeal airway and craniocervical postural changes.
  • Küçük Resim
    Öğe
    Ortodontide kullanılan şeffaf plakların su emilimlerinin ve renklenmelerinin değerlendirmesi
    (İstanbul Gelişim Üniversitesi Yayınları / Istanbul Gelisim University Press, 2021) Ergel, Duygu; Sadry, Sanaz; Ok, Ufuk
    Şeffaf plak kullanan hastalarda termoplastik malzemede oluşabilecek renk değişikliklerini önlemek amacıyla, hastalara su hariç her yiyecek ve içecek tüketimleri sırasında plaklarını çıkarmaları önerilmektedir. Ancak yine de günlük hayatta bazı hastalar, özellikle içecek tüketimi sırasında plaklarını çıkarmadan günlük rutinlerine devam etmektedir. Bu durumda termoplastik olan şeffaf plakların fiziksel özelliklerini etkilemektedir. Termoplastik malzemelerinin fiziksel özellikleriyle ilgili çok az çalışma vardır. Hastaların bilgilendirmesi açısından literatürde yeterli sayıda yol gösterici kanıtlar bulunmamaktadır. Bu çalışmada amaç, şeffaf plakların boyar ajanlara maruz bırakıldıktan sonra oluşan renk değişikliklerinin karşılaştırmalı olarak incelenmesidir.
  • Küçük Resim
    Öğe
    Three-dimensional zygomatic changes after rapid maxillary expansion in growing patients
    (Urban & Vogel, 2023) Ok, Ufuk; Kayalar, Emre; Sadry, Sanaz
    Purpose To assess the effects of rapid maxillary expansion (RME) treatment on the zygomatic bone complex (ZBC). Methods In this single-center retrospective study, pre- and posttreatment cone-beam computed tomography (CBCT) images of 38 patients treated with RME were analyzed to investigate changes in the coordinates of the ZBC landmarks. At the start of treatment (T0), the patients' mean age was 11.1 +/- 3.8 years (range 8.3-14.9 years). Cohen's d test was used to evaluate statistical differences. Results There were statistically significant differences between T0 and T1 (P < 0.01) in the measurement values for the maxillary transverse width (Delta T: 3.18 +/- 2.58, d: 1.23), frontozygomatic sutures (Delta T: 1.09 +/- 0.56, d: 0.43), lowest point of the zygomaticomaxillary sutures (Delta T: 3.16 +/- 1.78, d: 0.78), frontomaxillary angular parameter (right side Delta T: 2.81 +/- 1.63, d: 1.73; left side Delta T: 2.52 +/- 1.20, d: 2.10), frontozygomatic angular parameter (right side Delta T: 2.81 +/- 1.63 d: 1.07; left side Delta T: 2.21 +/- 2.79, d: 0.61), anterior intermaxillary distance (Delta T: 2.11 +/- 1.42, d: 0.99), interzygomaticotemporal distance (Delta T: 2.00 +/- 2.42, d: 0.99), and zygomatic angular parameter (right side Delta T: 2.06 +/- 1.29, d: 1.6; left side Delta T: 2.02 +/- 1.86, d: 1.09). Conclusions After RME in growing patients, the zygomatic bone showed pyramidal expansion in the coronal plane and parallel palatal expansion in the axial plane. In addition, significant lateral relocation of the zygomatic bone occurred. The zygomatic bone tended to rotate outward in conjunction with the maxilla, with a typical center of rotation close to the superior side of the frontozygomatic suture. These results shed light on the patterns of skeletal expansion in the zygomatic bone associated with RME in growing patients.