Research Papers: General

On the sensitivity of thermophotonic lock-in imaging and polarized Raman spectroscopy to early dental caries diagnosis

[+] Author Affiliations
Nima Tabatabaei, Andreas Mandelis

University of Toronto, Center for Advanced Diffusion-Wave Technologies, Department of Mechanical and Industrial Engineering, Toronto, Ontario, M5S 3G8, Canada

Mehdi Dehghany, Kirk H. Michaelian

CANMET Energy Technology Centre-Devon, Natural Resources Canada, 1 Oil Patch Drive, Suite A202, Devon, Alberta, Canada T9G 1A8

Bennet T. Amaechi

University of Texas Health Science Center at San Antonio, Department of Community Dentistry, San Antonio, Texas 78229-3900

J. Biomed. Opt. 17(2), 025002 (Feb 23, 2012). doi:10.1117/1.JBO.17.2.025002
History: Received September 23, 2011; Revised December 6, 2011; Accepted December 8, 2011
Text Size: A A A

Abstract.  Dental caries is the leading cause of tooth loss, which can promptly be prevented if detected in early stages of progression. Unfortunately, conventional diagnostic modalities currently used in dentistry lack the sensitivity to detect early caries. The authors’ intention is to compare the ability of polarized Raman spectroscopy and thermophotonic imaging to make early caries diagnosis. Extracted human teeth with no visible stain or defects were artificially demineralized in accordance to a well-known protocol in dentistry for simulated early caries development at several demineralization stages. Samples were then inspected using polarized Raman spectroscopy and thermophotonic imaging. The sensitivities of these two diagnostic modalities are compared, and the results are verified using transverse micro-radiography. It was found that compared to polarized Raman spectroscopy, thermophotonic imaging exhibits superior sensitivity to very early stages of demineralization.

Figures in this Article
© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Nima Tabatabaei ; Andreas Mandelis ; Mehdi Dehghany ; Kirk H. Michaelian and Bennet T. Amaechi
"On the sensitivity of thermophotonic lock-in imaging and polarized Raman spectroscopy to early dental caries diagnosis", J. Biomed. Opt. 17(2), 025002 (Feb 23, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.2.025002


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.