Terahertz Pulse Imaging: A Pilot Study of Potential Applications in DentistryCrawley D.A. · Longbottom C. · Cole B.E. · Ciesla C.M. · Arnone D. · Wallace V.P. · Pepper M.
aUniversity of Cambridge, Cavendish Laboratory, and bTeraview Ltd., Cambridge Science Park, Cambridge, cUniversity of Dundee, Dundee Dental School, Dundee, UK
The improvement in the detection of caries offers the possibility for dramatic improvement in dental healthcare. Current caries detection rates suggest that there may be scope for improvement. This paper describes a preliminary study to examine applications of terahertz pulse imaging (TPI) to caries detection. We present results for the detection of early stage caries in the occlusal enamel layer of a range of human tooth cross sections using TPI. Higher attenuation of terahertz radiation was observed in carious enamel as compared with healthy enamel. Hypomineralised enamel had different absorption spectra and contrast compared to carious enamel in TPI images. These results have important implications for extending TPI to other medical imaging applications where both early diagnosis and safety issues are important.
University of Cambridge, Cavendish Laboratory
Cambridge CB3 0HE (UK)
Tel. +44 1223 764 166, Fax +44 1223 337 271, E-Mail email@example.com
Received: December 16, 2001
Accepted after revision: April 25, 2003
Number of Print Pages : 8
Number of Figures : 7, Number of Tables : 2, Number of References : 12
Caries Research (Journal of the European Organization for Caries Research (ORCA))
Journal founded 1967 by Y. Ericsson; edited 1970–1987 by K.G. König; 1987–1994 by J.M. ten Cate; 1994–2000 by J. Tenovuo
Vol. 37, No. 5, Year 2003 (Cover Date: September-October 2003)
Journal Editor: R.P. Shellis, Bristol
ISSN: 0008–6568 (print), 1421–976X (Online)
For additional information: http://www.karger.com/journals/cre