Multispectral X-ray imaging to distinguish among dental materials.

Imaging Sci Dent 2017 Dec 12;47(4):247-254. Epub 2017 Dec 12.

Department of Prosthodontics and Orofacial Function, School of Dentistry, Philipps-University Marburg/Lahn, Germany.

Purpose: Dual-energy X-ray imaging is widely used today in various areas of medicine and in other applications. However, no similar technique exists for dental applications. In this study, we propose a dual-energy technique for dental diagnoses based on voltage-switching.

Materials And Methods: The method presented in this study allowed different groups of materials to be classified based on atomic number, thereby enabling two-dimensional images to be colorized. Computer simulations showed the feasibility of this approach. Using a number of different samples with typical biologic and synthetic dental materials, the technique was applied to radiographs acquired with a commercially available dental X-ray unit.

Results: This technique provided a novel visual representation of the intraoral environment in three colors, and is of diagnostic value when compared to state-of-the-art grayscale images, since the oral cavity often contains multiple permanent foreign materials.

Conclusion: This work developed a technique for two-dimensional dual-energy imaging in the context of dental applications and showed its feasibility with a commercial dental X-ray unit in simulation and experimental studies.

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Source
https://synapse.koreamed.org/DOIx.php?id=10.5624/isd.2017.47
Publisher Site
http://dx.doi.org/10.5624/isd.2017.47.4.247DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5738507PMC
December 2017
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