Publications by authors named "Gyu-Dong Jo"
The aim of this study is to propose and evaluate a novel method for measuring the central ray direction and detecting the rotation centre of panoramic radiography using the panorama phantom. To determine the central ray direction, 2 points passing through the same x-coordinate in a panoramic radiograph were identified and connected. The angles formed by the central ray with the midline and the angle to the arch form were measured using mathematical calculations.
View Article and Find Full Text PDFBackground: In cases where oral squamous cell carcinoma (OSCC) invades the jawbone, clinicians frequently observe abnormal attenuation on computed tomography (CT) and pathologic signal intensity (SI) on magnetic resonance (MR) imaging of the affected underlying bone marrow. This study introduced a concept of "underlying bone change" to examine its association with clinicopathological features and prognosis of OSCC, as well as its correlation with medullary invasion.
Materials And Methods: We enrolled 93 consecutive patients diagnosed with OSCC, who underwent mandibulectomy between 2010 and 2016.
Article Synopsis
- Fibrodysplasia ossificans progressiva is a rare genetic disorder that causes abnormal bone growth in muscles and connective tissues, notably affecting areas like the head and neck, though this is less common.
- The report discusses two specific cases: one patient had difficulty opening their mouth due to ossification in the lateral pterygoid muscle, while another experienced limited neck movement from ossification in the platysma muscle.
- Clinicians should consider this condition when patients present with restricted mouth or neck movement and radiological signs of abnormal bone growth, and dentists should be cautious about invasive procedures for these individuals.
Purpose: Underlying bone sclerosis is frequently observed in clinical settings when oral squamous cell carcinoma (OSCC) invades the jaw bone. The aim of this study was to assess the prevalence and characteristics of underlying bone sclerosis in patients with OSCC.
Materials And Methods: We retrospectively reviewed the computed tomographic (CT) images of 131 patients who underwent mandibulectomy between January 2012 and December 2015 to treat OSCC.