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Use of optical coherence tomography for assessment of dental caries: Quantitative procedure

Amaechi, B.T., Higham, S.M., Podoleanu, Adrian G.H., Rogers, John A., Jackson, David A. (2001) Use of optical coherence tomography for assessment of dental caries: Quantitative procedure. Journal of Oral Rehabilitation, 28 (12). pp. 1092-1093. ISSN 0305-182X. (doi:10.1046/j.1365-2842.2001.00840.x) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://www.dx.doi.org/10.1046/j.1365-2842.2001.008...

Abstract

A method for quantitative assessment of dental caries using optical coherence tomography (OCT) was demonstrated. Development of caries lesions in 15 bovine teeth, by demineralization in acidic buffer solution, was quantitatively assessed daily for 3 days, using OCT. An OCT system which can collect A-scans (depth versus reflectivity curve), B-scans (longitudinal images) and C-scans (transverse images at constant depth) was used. While the B- and C-scans qualitatively described the lesion detected, the A-scan which showed the depth (mm) resolved reflectivity (dB) of the tooth tissue was used for the quantitative analysis. After a simple normalization procedure to determine the actual depth the light travelled into the tooth tissue, the area (R) under the A-scan was quantified as a measure of the degree of reflectivity of the tissue. The result showed that R (dB mm) decreased with increasing demineralization time. The percentage reflectivity loss (R%) in demineralized tissue, which related to the amount of mineral loss, was also calculated, and it was observed that R% increased with increasing demineralization time. It was concluded that with the above procedure, OCT could quantitatively monitor the mineral changes in a caries lesion on a longitudinal basis.

Item Type: Article
DOI/Identification number: 10.1046/j.1365-2842.2001.00840.x
Additional information: This is available as OPEN ACCESS by clicking on the URL.
Uncontrolled keywords: optical coherence tomography;dental imaging;caries diagnosis;caries assessment;demineralization;optical methods
Subjects: R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
R Medicine > RK Dentistry
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 27 Jul 2015 09:31 UTC
Last Modified: 29 May 2019 14:55 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49805 (The current URI for this page, for reference purposes)
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