Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Multispectral X-ray imaging to distinguish among dental materials

  • Peter, Ann-Christin (Department of Prosthodontics and Orofacial Function, School of Dentistry, Philipps-University Marburg) ;
  • Schnaubelt, Matthias (Department of Prosthodontics and Orofacial Function, School of Dentistry, Philipps-University Marburg) ;
  • Gente, Michael (Department of Prosthodontics and Orofacial Function, School of Dentistry, Philipps-University Marburg)
  • Received : 2017.09.18
  • Accepted : 2017.11.04
  • Published : 2017.12.31
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Abstract

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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References

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