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    Comparative Morphometric Study of the Occipital Condyle in Class III and Class I Skeletal Malocclusion Patients
    (Mdpi, 2024) Gumussoy, Ismail; Duman, Suayip Burak; Miloglu, Ozkan; Demirsoy, Mustafa Sami; Dogan, Ayhan; Abdelkarim, Ahmed Z.; Guller, Mustafa Taha
    Objectives: Since the formation of skeletal malocclusions is closely linked to general craniofacial development, it is crucial to understand the anatomy and growth patterns of the skull base. This study aimed to assess the morphometry of the occipital condyle (OC) on CBCT scans of Class III skeletal malocclusion subjects and compare the findings with those of skeletal Class I malocclusion subjects. Methods: A retrospective analysis was performed on CBCT images based on predefined inclusion and exclusion criteria. The sample consisted of 76 CBCT images of 38 skeletal Class III patients and 38 skeletal Class I patients. CBCT scans were used to measure mesiodistal width, sagittal length, coronal height, effective height of OC, and sagittal OC angle. Statistical analyses were conducted with RStudio software. Results: Significant differences were found in sagittal OC angle and sagittal length of OC between the study groups (p < 0.001). In other metrics, such as coronal height of OC, effective OC height, and mesiodistal width of OC between the groups, no significant differences were found. Class III malocclusions exhibited significantly reduced sagittal OC angle and sagittal length of OC compared to Class I malocclusions. The left side showed a significantly larger sagittal OC angle than the right side (p = 0.002). Conclusions: This preliminary study identified reduced sagittal angle and sagittal length of OC in patients with Class III skeletal malocclusion. Clinicians should recognize potential differences in OC morphometry in patients with skeletal malocclusions. Future studies involving larger populations are recommended to further investigate the relationship between skeletal malocclusions and posterior cranial base structures, including the OC.
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    Cone beam computed tomography imaging of ponticulus posticus: prevalence, characteristics, and a review of the literature
    (Elsevier Science Inc, 2014) Bayrakdar, Ibrahim Sevki; Miloglu, Ozkan; Altun, Oguzhan; Gumussoy, Ismail; Durna, Dogan; Yilmaz, Ahmet Berhan
    Objective. The aim of this study was to investigate the frequency of ponticulus posticus (PP) using cone beam computed tomography (CBCT) and to describe the radiologic characteristics of the detected cases. Study Design. The presence and types of PP were investigated on 730 CBCT images. Results. PP was found in 17.4% (127) of the 730 CBCT scans. Of these 127 patients, 79 (10.8%) had bilateral PP and 48 (6.6%) had unilateral PP. Male predominance was found with a prevalence of 19.5% (54 of 277) and female prevalence was 16.1% (73 of 453). The prevalence of PP increased with age; the highest prevalence of PP was seen in those who were 49 to 81 years of age. Conclusions. This study shows that PP is not an uncommon anatomic variation and is a natural incidental finding on CBCT.