Research Papers

Three-dimensional terahertz pulse imaging of dental tissue

[+] Author Affiliations
David Crawley

University of Cambridge, Cavendish Laboratory, Cambridge, United Kingdom

Tera View Limited, Cambridge Science Park, Cambridge, United Kingdom

Christopher Longbottom

University of Dundee, Dundee Dental School, Park Place, Dundee, United Kingdom

Vincent P. Wallace, Bryan Cole, Don Arnone

Tera View Limited, Cambridge Science Park, Cambridge, United Kingdom

Michael Pepper

University of Cambridge, Cavendish Laboratory, Cambridge, United Kingdom

Tera View Limited, Cambridge Science Park, Cambridge, United Kingdom

J. Biomed. Opt. 8(2), 303-307 (Apr 01, 2003). doi:10.1117/1.1559059
History: Received Mar. 1, 2002; Revised Sep. 16, 2002; Accepted Oct. 7, 2002; Online April 01, 2003
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There are unresolved clinical problems that require the provision of accurate 3-D images of tissue structures such as teeth. In particular, measurements of dental enamel thickness are necessary to quantify problems associated with enamel erosion, yet currently there is no nondestructive method to obtain this information. We present a method that relies on the use of pulsed terahertz radiation to gain 3-D information from dental tissues. We discuss results from 14 samples and demonstrate that we can reliably and accurately quantify enamel thickness. We show that in a series of 22 surfaces, we can image pertinent subsurface features 91% of the time. Example images are shown where structures in teeth at depth are rendered accurate to within 10 μm. We discuss issues that arise using this imaging method and propose ways in which it could be used in clinical practice. © 2003 Society of Photo-Optical Instrumentation Engineers.

© 2003 Society of Photo-Optical Instrumentation Engineers

Citation

David Crawley ; Christopher Longbottom ; Vincent P. Wallace ; Bryan Cole ; Don Arnone, et al.
"Three-dimensional terahertz pulse imaging of dental tissue", J. Biomed. Opt. 8(2), 303-307 (Apr 01, 2003). ; http://dx.doi.org/10.1117/1.1559059


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