期刊
DENTOMAXILLOFACIAL RADIOLOGY
卷 50, 期 2, 页码 -出版社
BRITISH INST RADIOLOGY
DOI: 10.1259/dmfr.20200159
关键词
tomosynthesis; radiography; carbon nanotubes; dental caries; tooth fractures
资金
- National Cancer Institute [1F30CA235892-01]
This study investigated the use of synthetic radiographs to improve the clinical utility of images generated by stationary intraoral tomosynthesis (sIOT). Results showed that synthetic radiographs contained less artefact and provided clearer visualization of caries and vertical root fractures compared to traditional radiographs and conventional image slices from sIOT. Synthetic radiographs also offered multiple viewing angles, potentially enhancing the display of pathologies in comparison to standard radiography.
Objectives: A practical approach to three-dimensional (3D) intraoral imaging would have many potential applications in clinical dentistry. Stationary intraoral tomosynthesis (sIOT) is an experimental 3D imaging technology that holds promise. The purpose of this study was to explore synthetic radiography as a tool to improve the clinical utility of the images generated by an sIOT scan. Methods: Extracted tooth specimens containing either caries adjacent to restorations (CAR) or vertical root fractures (VRF) were imaged by sIOT and standard dental radiography devices. Qualitative assessments were used to compare the conspicuity of these pathologies in the standard radiographs and in a set of multi-view synthetic radiographs generated from the information collected by sIOT. Results: The sIOT-based synthetic 2D radiographs contained less artefact than the image slices in the reconstructed 3D stack, which is the conventional approach to displaying information from a tomosynthesis scan. As a single sIOT scan can be used to generate synthetic radiographs from multiple viewing angles, the interproximal space was less likely to be obscured in the synthetic images compared to the standard radiograph. Additionally, the multi-view synthetic radiographs can potentially improve the display of CAR and VRFs as compared to a single standard radiograph. Conclusions: This preliminary experience combining synthetic radiography and sIOT in extracted tooth models is encouraging and supports the ongoing study of this promising approach to 3D intraoral imaging with many potential applications.
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