Open AccessMultispectral SWIR images of the pulp-chamber of posterior teeth in vitro
Author(s) -
Jacob C. Simon,
Emmanuel O. Mogire,
Sam Y. Yun,
Daniel Fried
Publication year - 2021
Publication title -
pubmed central
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.192
H-Index - 176
pISSN - 0277-786X
DOI - 10.1117/12.2584900
Subject(s) - transillumination , materials science , pulp (tooth) , posterior teeth , multispectral image , dentistry , optics , biomedical engineering , medicine , geology , remote sensing , physics
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.