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Multispectral SWIR images of the pulp-chamber of posterior teeth in vitro

Authors
  • Simon, Jacob C.
  • Mogire, Emmanuel O.
  • Yun, Sam Y.
  • Fried, Daniel
Type
Published Article
Journal
Proceedings of SPIE--the International Society for Optical Engineering
Publication Date
Mar 05, 2021
Volume
11627
Identifiers
DOI: 10.1117/12.2584900
PMID: 33776188
PMCID: PMC7993031
Source
PubMed Central
Keywords
Disciplines
  • Article
License
Unknown

Abstract

Intraoral imaging of teeth with SWIR light provides increased contrast of dental caries and restorative materials compared to visible inspection and digital radiography. The objective of this study was to investigate the SWIR optical properties of the dental pulp-chamber floor, walls and canal orifices. We imaged in vitro extracted human posterior teeth at 1300-nm and 1500–1700-nm in reflectance and transillumination and compared the tissues properties with visible light images and quantitative light fluorescence. Transillumination of posterior teeth at both 1300-nm and 1500–1700-nm yielded significantly higher contrast between the pulp-chamber floor and walls than all other methods tested.

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