A novel method of dental panoramic tomogram analysis: A perspective tool for a screening test for osteoporosis

Utilization of computer-aided detection system in diagnosing unilateral maxillary sinusitis on panoramic radiographs

“…4 These images are also used for screening of osteoporosis and carotid artery calcification. [5][6][7][8] However, diagnosis of the maxillary sinus is often difficult for inexperienced dentists or residents. Regarding maxillary sinusitis, easily recurring and refractory sinusitis (eosinophilic sinusitis) has been reported.…”

“…3 Panoramic radiography provides a variety of information for dentists, not only for caries and periodontal diseases but also for jaw tumours and temporomandibular joint arthritis, 4 together with systemic diseases, such as osteoporosis. [5][6][7][8] In addition, for diagnosis of diseases affecting the maxillary sinus, panoramic radiography can provide effective information, such as the Correspondence to: Dr Yoshiko Ariji. E-mail: yoshiko@dpc.agu.ac.jp presence of a globular radio-opaque mass on the posterior wall or floor.…”

IDIOS: An innovative index for evaluating dental imaging-based osteoporosis screening indices

“… 18 12 Radiographic density measurements (pixel intensity): This may be measured as metal equivalent thickness (aluminum or copper 25 in most studies), optical density (light transmittance through an area of the radiograph), 26 the blackness of the radiograph, or as relative density between different areas. 9 10 Simple visual estimation: The cortex is classified qualitatively into 3 categories based on simple visual estimations of the mandibular inferior cortex width: normal, intermediate (medium), and very thin. It is evaluated by observing the site (the inferior border of the mandible) with the naked eye.…”

“… Anatomical indices (relative or absolute linear measurements): Anatomical indices are based on geometric variables, which represent anatomical characteristics of the mandibular bone on dental panoramic radiographs. 9 10 Antegonial angle: This angle is measured by tracing 2 lines parallel to the lower cortical border in the antegonial region and measuring the angle of their intersection at the deepest point of the antegonial notch. 11 Antegonial depth: This parameter is measured as the distance along a perpendicular line from the deepest point of the antegonial notch concavity to a line parallel to the inferior cortical border of the mandible.…”

“…Anatomical indices (relative or absolute linear measurements): Anatomical indices are based on geometric variables, which represent anatomical characteristics of the mandibular bone on dental panoramic radiographs. 9 10 …”