Traditionally, multiple radiographic views and techniques were required to elucidate the nature and extent of fractures of the maxillofacial complex. As a result, patient cost in terms of time, expense, manipulation, and radiation exposure scaled upward. Synthesis and interpretation of the fragmented bits of information from multiple films also constituted a labor-intensive process. A new imaging modality, panoramic zonography, provides precise anatomic imaging of preselected areas of interest with minimal radiation exposure. The usefulness of this technique in the diagnosis, treatment, and follow-up of traumatic events in the mandibular and maxillofacial regions is illustrated by a series of cases.
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http://dx.doi.org/10.1016/0030-4220(89)90336-8 | DOI Listing |
World J Radiol
January 2025
Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara 06500, Türkiye.
Oral and maxillofacial diagnostic imaging is of paramount importance in dental clinical diagnosis, treatment planning, and follow-up procedures. Periapical radiographic examination and numerous panoramic systems are used in routine clinical dental practice. Cone beam CT is widely used and currently the method of choice in oral and maxillofacial implantology, endodontics, maxillofacial surgery, periodontics, degenerative temporomandibular joint disease, orthodontics, airway studies, sleep disorders, and forensic dentistry.
View Article and Find Full Text PDFBMC Oral Health
January 2025
Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Background: Ameloblastoma is the most prevalent odontogenic tumor of the jaw, with a significant recurrence rate. It was conventionally classified radiographically as unilocular or multilocular. As 3D images become more common, there is a need to reassess this classification.
View Article and Find Full Text PDFSci Data
January 2025
School of Computer Science, Hangzhou Dianzi University, Hangzhou 310018, China.
In response to the increasing prevalence of dental diseases, dental health, a vital aspect of human well-being, warrants greater attention. Panoramic X-ray images (PXI) and Cone Beam Computed Tomography (CBCT) are key tools for dentists in diagnosing and treating dental conditions. Additionally, deep learning for tooth segmentation can focus on relevant treatment information and localize lesions.
View Article and Find Full Text PDFJ Appl Oral Sci
January 2025
Nanjing University, Research Institute of Stomatology, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Oral and Maxillofacial Trauma Orthognathic Plastic Surgery, Nanjing, China.
Objectives: Depth of invasion (DOI) in oral squamous cell carcinoma (OSCC) guides treatment and prognosis but lacks three-dimensional (3D) insight. Thus, this study aimed to investigate the feasibility and accuracy of Lugol's iodine-enhanced micro-computed tomography (CT) for the 3D measurement of DOI in OSCC samples.
Methodology: In total, 50 in vitro OSCC samples from Nanjing Stomatological Hospital (July 2022 to January 2024) were subjected to micro-CT imaging with a slice thickness of 50 μm following 3% Lugol iodine staining for 12 h, followed by pathological examination and staining.
Oral Surg Oral Med Oral Pathol Oral Radiol
November 2024
Department of Oral and Maxillofacial Radiology, UNC Adams School of Dentistry, University of North Carolina - Chapel Hill, Chapel Hill, North Carolina.
Objective: This study examined the effects of changes in patient positioning on radiation exposure for panoramic and cone beam computed tomography (CBCT) radiographic examinations by measuring effective dose (E) and equivalent doses.
Study Design: Simulated radiographic examinations with optimal and suboptimal positioning-anterior shift by 1 centimeter (cm), posterior shift by 1 cm, chin lowered by 10 degrees (°), chin elevated by 10°, rotation by 10°, and lateral shift by 1 cm-were conducted using a tissue-equivalent phantom and optically-stimulated luminescent dosimeters. Exposures were made with the RAYSCAN Alpha Plus 160 X-ray unit using the following exposure parameters: panoramic, 80 kVp, 14 mA, and 13.
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