Browsing by Author "Ergezen, Ezgi"

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Characterizing The Unseen: Clinical And Radiographic Perspectives On Unilateral Condylar Hyperplasia
(JOURNAL OF STOMATOLOGY ORAL AND MAXILLOFACIAL SURGERY, 2024-12) Ergezen, Ezgi; Salyut, Ardakgul; Akdeniz, Sidika Sinem; Cubuk, Secil
Objectives: Unilateral condylar hyperplasia (UCH), marked by progressive condylar growth, occurs between ages 11-30 with unclear etiology. This retrospective study aims to clarify the clinical, radiographic, and demographic features of UCH to improve its diagnosis and treatment. Material and methods: Data for all patients included in this study were retrieved from the archive. Inclusion criteria were the diagnosis of UCH supported by a positive bone scan above 10% of condylar uptake in SPECT/ CT, the patient's history of progressive facial asymmetry, symptoms confirmed by the orthodontist during follow-up, and clinical and radiological evaluation. Demographic characteristics, along with volumetric and linear measurements, were statistically evaluated. Results: Forty-one patients were included in this study with 70.73% female predominance. Patients were classified as transverse and vertical type condylar hyperplasia (CH) according to their prominent asymmetry characteristics. Eighteen patients were classified as vertical type CH and 23 patients were classified as transverse type CH. Twenty had left-side condylar overgrowth, and 21 had right-side overgrowth. Condylar volume difference was significantly higher in vertical type CH patients compared to transverse type CH (p = 0.004). No correlation was found between growth rate (bone scan uptake ratio) and condylar volume difference in patients with vertical type and transverse type CH patients (p = 0.205). Conclusion: Particularly in cases that exhibit a pronounced vertical growth tendency, volumetric and linear measurements can guide the timing and treatment planning process. (c) 2024 Elsevier Masson SAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Evaluation of Stress Distribution of Four Different Fixation Systems at High- and Low-Level Subcondylar Fractures on a Nonhomogenous Finite Element Model
(2020) Ergezen, Ezgi; Akdeniz, Sidika Sinem; 32445628
Purpose: The aim of the present study was to provide insight into a suitable fixation system for subcondylar fractures located at different levels. Materials and Methods: High and low subcondylar fractures were simulated on a nonhomogenous mandibular model, and rhombic, trapezoid, and lambda plates and 2 miniplates were used for fixation. The stress in the bone and displacement of the fracture site were measured using finite element analysis. Results: For both high and low subcondylar fractures, the lowest von Mises stress was measured in the rhombic plate system. For high subcondylar fractures, the highest tension in the cortical bone was measured in the trapezoid plate system, and the highest compression was measured in the rhombic plate system. For low subcondylar fractures, the highest tension in the bone was measured in the rhombic system and the highest compression was measured in the trapezoid system. In both high and low subcondylar fracture models, the least displacement amount was measured in the 2-plate system. Conclusions: The results of the present study have shown that the rhombic plate system might be the proper choice for high subcondylar fractures and the 2-plate system might provide better results for low subcondylar fractures. (C) 2020 American Association of Oral and Maxillofacial Surgeons
Influence of Orthognathic Surgery on Oral Health and Quality of Life
(2022) Tuz, Hakan Hifzi; Ergezen, Ezgi; Meral, Salih Eren; Ekmekcioglu, Aylin; El, Hakan; 33867509
Orthognathic surgery is a common treatment modality for moderate to severe dentofacial deformities. This study aimed to determine the early postoperative changes in quality of life (QoL) after orthognathic surgery. Twenty patients were evaluated preoperatively (T0), postoperatively after 1 month (T1), and postoperatively after 3 months (T2). Short Form Oral Health Impact Profile and Orthognathic Quality of life Questionnaire were used as generic oral health-related and condition-specific QoL measures. Oral Health Impact Profile -14 and Orthognathic Quality of life Questionnaire scores significantly decreased from T0-T2. Physical pain, psychological disability, social disability, and handicap scores significantly decreased during this interval. Facial esthetic, function, awareness of facial deformity, and social aspects of deformity were also found to significantly improve. No significant difference was found between age groups; female patients had significantly greater preoperative Oral Health Impact Profil-14 scores than did male patients. Orthognathic surgery not only enhances the skeletal and facial relations, but also has significant positive effects on the patients' QoL, oral health, and psychological status.