Authors: Michael G Sowa Dan P Popescu Jeffrey Werner Mark Hewko Alex CT Ko Jeri Payette Cecilia C S Dong Blaine Cleghorn LinP’ing ChooSmith
Publish Date: 2006/11/03
Volume: 387, Issue: 5, Pages: 1613-1619
Abstract
The demineralization of enamel that is associated with early caries formation affects the optical properties of the enamel Polarized Raman spectroscopy and optical coherence tomography have been used to detect these changes and potentially offer a means to detect and monitor early caries development The total optical attenuation coefficient as measured by optical coherence tomography and the polarization anisotropy of the Raman peak arising from the symmetric ν1 vibration of textPOtext3 text4 at approximately 959 cm−1 have been demonstrated as being sensitive markers of early caries This ex vivo study on extracted human teeth demonstrates that these measurements can be made with reasonable precision with concomitantly good repeatability and reproducibility in sound enamel Such reliability is crucial for these techniques to have a practical clinical valueThis research was supported in part by a grant from the Canadian Institutes of Health ResearchInstitute of Musculoskeletal Health and Arthritis We thank the Graduate Orthodontic Program and the Oral Surgery Clinic at the Faculty of Dentistry University of Manitoba for assisting in collection of teeth for this study
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