Optical detection dental disease using polarized light
Abstract
A polarization sensitive optical imaging system is used to detect changes in polarization in dental tissues to aid the diagnosis of dental disease such as caries. The degree of depolarization is measured by illuminating the dental tissue with polarized light and measuring the polarization state of the backscattered light. The polarization state of this reflected light is analyzed using optical polarimetric imaging techniques. A hand-held fiber optic dental probe is used in vivo to direct the incident beam to the dental tissue and collect the reflected light. To provide depth-resolved characterization of the dental tissue, the polarization diagnostics may be incorporated into optical coherence domain reflectometry and optical coherence tomography (OCDR/OCT) systems, which enables identification of subsurface depolarization sites associated with demineralization of enamel or bone.
- Inventors:
-
- Livermore, CA
- (Livermore, CA)
- Danville, CA
- San Francisco, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 875063
- Patent Number(s):
- 6522407
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- optical; detection; dental; disease; polarized; light; polarization; sensitive; imaging; detect; changes; tissues; diagnosis; caries; degree; depolarization; measured; illuminating; tissue; measuring; backscattered; reflected; analyzed; polarimetric; techniques; hand-held; fiber; optic; probe; vivo; direct; incident; beam; collect; provide; depth-resolved; characterization; diagnostics; incorporated; coherence; domain; reflectometry; tomography; ocdroct; systems; enables; identification; subsurface; sites; associated; demineralization; enamel; bone; fiber optic; optical imaging; optical detection; sensitive optical; /356/
Citation Formats
Everett, Matthew J, Colston, Jr., Billy W., Sathyam, Ujwal S, Da Silva, Luiz B, and Fried, Daniel. Optical detection dental disease using polarized light. United States: N. p., 2003.
Web.
Everett, Matthew J, Colston, Jr., Billy W., Sathyam, Ujwal S, Da Silva, Luiz B, & Fried, Daniel. Optical detection dental disease using polarized light. United States.
Everett, Matthew J, Colston, Jr., Billy W., Sathyam, Ujwal S, Da Silva, Luiz B, and Fried, Daniel. Wed .
"Optical detection dental disease using polarized light". United States. https://www.osti.gov/servlets/purl/875063.
@article{osti_875063,
title = {Optical detection dental disease using polarized light},
author = {Everett, Matthew J and Colston, Jr., Billy W. and Sathyam, Ujwal S and Da Silva, Luiz B and Fried, Daniel},
abstractNote = {A polarization sensitive optical imaging system is used to detect changes in polarization in dental tissues to aid the diagnosis of dental disease such as caries. The degree of depolarization is measured by illuminating the dental tissue with polarized light and measuring the polarization state of the backscattered light. The polarization state of this reflected light is analyzed using optical polarimetric imaging techniques. A hand-held fiber optic dental probe is used in vivo to direct the incident beam to the dental tissue and collect the reflected light. To provide depth-resolved characterization of the dental tissue, the polarization diagnostics may be incorporated into optical coherence domain reflectometry and optical coherence tomography (OCDR/OCT) systems, which enables identification of subsurface depolarization sites associated with demineralization of enamel or bone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}
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