Imaging Sci Dent.  2017 Dec;47(4):247-254. 10.5624/isd.2017.47.4.247.

Multispectral X-ray imaging to distinguish among dental materials

Affiliations
  • 1Department of Prosthodontics and Orofacial Function, School of Dentistry, Philipps-University Marburg/Lahn, Germany. gente@med.uni-marburg.de

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.

Keyword

Color; Radiographic Image Enhancement; Absorptiometry, Photon; Dental Materials

MeSH Terms

Absorptiometry, Photon
Computer Simulation
Dental Materials*
Diagnosis
Methods
Mouth
Radiographic Image Enhancement
Dental Materials
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