Person: GÖRÜRGÖZ, CANSU
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GÖRÜRGÖZ
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Publication Is it possible to reveal a typical swallowing pattern for specific skeletal malocclusion types using M-mode sonographic imaging of tongue movements?(Urban & Vogel, 2022-04-08) Görürgöz, Cansu; Yangıncı, Yasemin; Akçam, Mehmet Okan; Orhan, Kaan; GÖRÜRGÖZ, CANSU; Diş Hekimliği Fakültesi; Dentomaksillofasiyal Radyoloji Ana Bilim Dalı; 0000-0002-3083-1660; AAQ-4576-2020Purpose The present study aims to compare the M-mode ultrasound findings of different skeletal malocclusions and to evaluate whether sonographic parameters can be used for the diagnosis of malocclusions. Methods Tongue movements of 36 adolescents aged between 10.37 and 17.29 years (mean 14.25 +/- 1.78 years) were assessed using simultaneous two-dimensional real-time B-mode and M-mode sonography. The swallowing patterns of the subjects were visualized recording the motion of the tongue surface in the ultrasound images utilizing a fixed scan line through the middle of the tongue. M-mode scans of tongue motion during empty deglutition were recorded. The parameters range, duration, and speed were computed for the entirety of the swallowing process using M-mode examination. Findings were evaluated and statistically analyzed. Results No clear intraindividual repeatability in the M-mode imaging of the subjects' swallowing process could be observed. Considering the setup used in the study, it was not always possible to distinguish individual swallowing stages in the M-mode images with regard to the chosen reference points. The average duration, range of motion, and speed of swallowing were found to be 2.43 s, 24.06 mm, and 10.34 mm/s, respectively. The findings showed both intra- and intersubject variability during empty swallowing. Conclusion With the help of the metrics that could be calculated based on the M-mode images, it was not possible to differentiate the swallowing acts of different skeletal malocclusion types. It remains unclear whether M-mode imaging can accurately visualize the swallowing pattern. Therefore, further progress in technology and multidisciplinary work is needed in order to establish diagnostic references regarding swallowing.Publication Degenerative changes of the mandibular condyle in relation to the temporomandibular joint space, gender and age: A multicenter CBCT study(Wroclaw Medical Univ, 2023-01-01) Görürgöz, Cansu; İçen, Murat; Kurt, Mehmet Hakan; Aksoy, Seçil; Bakirarar, Batuhan; Rozylo-Kalinowska, Ingrid; Orhan, Kaan; GÖRÜRGÖZ, CANSU; Diş Hekimliği Fakültesi; Dentomaksillofasiyal Radyoloji Ana Bilim Dalı; 0000-0002-3083-1660 ; AAQ-4576-2020Background. Cone-beam computed tomography (CBCT) is used to provide multiplanar views of the temporomandibular joint (TMJ) bone components as well as TMJ pathologies without superposition, magnification or distortion.Objectives. The study aimed to analyze degenerative changes in the condylar surface, and their relation-ship with patient age and gender, and the TMJ space measurements by using CBCT images. Material and methods. A total of 258 individuals were retrospectively analyzed. The degenerative bone changes of the condylar head were evaluated and classified on the right and left sides. The shortest dis-tances from the anterior, superior and posterior parts of the condylar head to the glenoid fossa were mea-sured to represent the TMJ space. Univariate and multivariate logistic regression analyses then evaluated the effect of age and gender on the presence of degenerative changes.Results. Condylar flattening was most frequently observed (413 TMJs, 53.5%). However, the presence or absence of the change types did not differ according to the sides. The mean values of the TMJ space measurements on the right and left sides were narrower in the group with changes than in the group without changes. Nonetheless, no statistically significant difference in the TMJ space was found between the groups (p > 0.05).Conclusions. An increased risk of radiographically detectable degenerative alterations in left TMJs was detected for males and for increasing age. Degenerative changes in the condylar surface may affect the dimensions of the TMJ space.Publication Long-term evaluation of masseter muscle activity, dimensions, and elasticity after orthognathic surgery in skeletal class III patients(Springer, 2023-04-06) Muftuoğlu, Özge; Aktürk, Ezgi Sunal; Eren, Hakan; Görürgöz, Cansu; Karasu, Hakan Alpay; Orhan, Kaan; Akat, Bora; Memikoglu, Tülin Ufuk Toygar; GÖRÜRGÖZ, CANSU; Diş Hekimliği Fakültesi; Ağız, Diş ve Çene Radyolojisi Ana Bilim Dalı; 0000-0002-3083-1660; AAQ-4576-2020ObjectiveTo evaluate changes in the masseter muscle after orthognathic surgery using electromyography (EMG), ultrasonography (US), and ultrasound elastography (USE) in individuals with skeletal class III anomaly over long-term follow-up and compare with a control group.Materials and methodsThe study group included 29 patients with class III dentofacial deformities scheduled to undergo orthodontic treatment and orthognathic surgery. The control group included 20 individuals with dental class I occlusion. Assessment of the masseter muscles using EMG, US, and USE was performed before orthognathic surgery (T1) and at postoperative 3 months (T2) and 1 year (T3) in the study group, and at a single time point in the control group. All assessments were performed at rest and during maximum clenching. Masseter muscle activity, dimension, and hardness were analyzed.ResultsElectromyographic activity of the masseter muscle during maximum clenching was increased at postoperative 1 year but did not reach control group values. On ultrasonography, the masseter muscle showed minimal changes in dimension at postoperative 1 year compared to preoperative values and remained below control group values. The postoperative increase in masseter muscle hardness at rest and during maximum clenching persisted at postoperative 1 year.ConclusionThe results of this study suggest that after orthognathic surgery, additional interventions and much longer follow-up are needed to ensure better muscle adaptation to the new occlusion and skeletal morphology.Publication Anatomic characteristics and dimensions of the nasopalatine canal: A radiographic study using cone-beam computed tomography(Via Medica, 2021-01-01) Görürgöz, Cansu; Öztaş, B.; GÖRÜRGÖZ, CANSU; Diş Hekimliği Fakültesi; Dentomaksillofasiyal Radyoloji Ana Bilim Dalı; 0000-0002-3083-1660; AAQ-4576-2020Background: Description of the nasopalatine canal (NPC) is important for planning surgical treatment and comprehension of the morphology and pathogenesis of lesions that occur in the anterior maxilla. The goal of this study was to analyse the dimensions and anatomic characteristics of the NPC on cone-beam computed tomography (CBCT) scans, to determine the incidence of anatomical variation; and to assess the correlations of these variables with age, gender, and dental status.Materials and methods: A total of 320 individual CBCT images were included. Reformatted sagittal, coronal and axial slices were evaluated. Sagittal images were used for measurements of the NPC and to classified shape and direction-course of the NPC. Coronal images were used to analyse the NPC division levels and axial images were used to detect the number of palatal and nasal opening.Results: The mean NPC length was 11.45 +/- 2.50 mm; statistically significant differences were detected between males and females (p < 0.05). Mean nasopalatine angle was 76.26 +/- 8.12 degrees; significant differences were detected in sagittal and coronal classifications. The most common canal was: funnel-shaped (29%), slanted-curved direction-course (53.1%), middle third division level (43.1%), and one incisive foramen with two Stenson's foramina (1-2) (77.2%).Conclusions: The current study ensures new findings on the literature concerning the description of the anatomical structure of the canal. Also, the study highlights a significant variability in the anatomy and morphology of the NPC. Therefore, three-dimensional analysis of this structure is important for facilitating surgical management and preventing possible complications in this area.Publication Juvenile pleomorphic adenoma of the cheek: Report of a rare case and literature analysis(Elsevier, 2020-12-01) Görürgöz, Cansu; Erdem, Murat Kaan; Erdem, Erdal; Gültekin, Sibel Elif; GÖRÜRGÖZ, CANSU; Diş Hekimliği Fakültesi; Dentomaksillofasiyal Radyoloji Ana Bilim Dalı; 0000-0002-3083-1660; AAQ-4576-2020Purpose: The aim of this paper is to describe a rare case of children with pleomorphic adenoma in buccal minor salivary gland and present a brief review of the previous cases in the literature. Methods: Research was conducted in the PubMed/MEDLINE/Google Scholar databases. The research was supplemented with a manual search to identify related published articles in dental journals. Results: Articles published from 1986 onwards, in English language with full texts, were selected. Our search revealed that only 6 cases of children with pleomorphic adenoma in cheek (including pleomorphic adenoma arising from accessory parotid gland) were reported in the last 34 years. This paper also reports a case of pleomorphic adenoma on the cheek in a 10-year-old girl. The mass diagnosed with Ultrasonography was removed by wide local excision and no recurrence has been noted with a follow-up period of 14 months. Conclusion: Salivary glands tumors are very rare in the pediatric age group, and rarely in minor salivary glands. Proper examination and assessment with preoperative imaging are necessary for its diagnosis. Pleomorphic adenoma should be included in the differential diagnosis of cheek lesions in young and adult patients. The possibility of late recurrences and malignant transformation should be regarded, thus prolonged follow-up is essential.