Objectives: The aim of this study was to make radiomorphometric measurements on panoramic images and evaluate the radiologic findings of bones and teeth in patients with scleroderma.
Study Design: Panoramic images of 49 patients with scleroderma and 51 healthy controls were assessed. Mandibular radiomorphometric indices, including mandibular cortical index (MCI), mental index (MI), panoramic mandibular index (PMI), gonial index (GI), and antegonial index (AI), were determined. Furthermore, mandibular osteolysis, changes of periodontal ligament (PDL) space and changes in the lamina dura were recorded for the scleroderma group.
Results: Statistically significant differences were found for MCI (P = .003), MI (P = .001), and PMI (P < .001) between the scleroderma and control groups, but not for GI or AI (P > .05). Widening of the PDL space (79.6%), thickening of the lamina dura (44.9%), limited mouth opening (71.4%), and osseous resorption of the mandible (8%) were detected in the scleroderma group.
Conclusions: The radiomorphometric indices determined in the present study can be used on panoramic images to identify the existence of a porous structure in the mandibular cortical bone in patients with scleroderma. The most common prevalent oral radiographic manifestations of scleroderma were widening of the PDL space and of the lamina dura.
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http://dx.doi.org/10.1016/j.oooo.2018.08.007 | DOI Listing |
Sci Rep
December 2024
Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
Surgeons routinely interpret preoperative radiographic images for estimating the shape and position of the tooth prior to performing tooth extraction. In this study, we aimed to predict the difficulty of lower wisdom tooth extraction using only panoramic radiographs. Difficulty was evaluated using the modified Parant score.
View Article and Find Full Text PDFOral Radiol
December 2024
Department of Oral, Dental and Maxillofacial Radiology, Faculty of Dentistry, Ataturk University, Erzurum, 25240, Turkey.
Objective: The aim of this study is to determine the contact relationship and position of impacted mandibular third molar teeth (IMM) with the mandibular canal (MC) in panoramic radiography (PR) images using deep learning (DL) models trained with the help of cone beam computed tomography (CBCT) and DL to compare the performances of the architectures.
Methods: In this study, a total of 546 IMMs from 290 patients with CBCT and PR images were included. The performances of SqueezeNet, GoogLeNet, and Inception-v3 architectures in solving four problems on two different regions of interest (RoI) were evaluated.
Biomimetics (Basel)
December 2024
Sussex AI, School of Engineering and Informatics, University of Sussex, Brighton BN1 9QJ, UK.
Visual navigation is a key capability for robots and animals. Inspired by the navigational prowess of social insects, a family of insect-inspired route navigation algorithms-familiarity-based algorithms-have been developed that use stored panoramic images collected during a training route to subsequently derive directional information during route recapitulation. However, unlike the ants that inspire them, these algorithms ignore the sequence in which the training images are acquired so that all temporal information/correlation is lost.
View Article and Find Full Text PDFBMC Oral Health
December 2024
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Türkiye.
Objective: This study aimed to investigate the variables affecting the visibility of the submandibular fossa (SF) on panoramic images, including SF depth and types, age, gender, presence or absence of tooth, location of mandibular canal, and alveolar bone thicknesses.
Methods: Cone beam computed tomography (CBCT) images and conventional panoramic images of 150 patients were analyzed retrospectively. The visibility of the SF on panoramic images was compared with its depth and adjacent alveolar bone thicknesses on CBCT.
Photodiagnosis Photodyn Ther
December 2024
Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China. Electronic address:
Purpose: To investigate retinal vascular abnormalities in the affected and fellow eyes of children with Coats' disease using Optos® ultra-widefield fundus fluorescein angiography (UWFFA) and compare the peripheral vascular abnormalities between fellow eyes and normal control eyes.
Methods: Children diagnosed with Coats' disease who underwent UWFFA were retrospectively reviewed. Healthy eyes with complete UWFFA data were selected as controls.
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