Skip to main content

Application of optical coherence tomography for imaging and assessment of early dental caries lesions

Amaechi, Bennett T., Podoleanu, Adrian G.H., Komarov, Gleb, Rogers, John A., Higham, Susan M., Jackson, David A. (2003) Application of optical coherence tomography for imaging and assessment of early dental caries lesions. Laser Physics, 13 (5). pp. 703-710. ISSN 1054-660X. (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)

Abstract

The ability of an en-face optical coherence tomography (OCT) system to detect and quantitatively monitor the demineralization of teeth to produce enamel caries was determined and validated with an established method of quantifying demineralization, transverse microradiography (TMR). Factors that might affect the use of OCT to detect and quantify caries were also examined. We used an OCT system which can collect A-scans, B-scans (longitudinal images) and C-scans (en-face images). Development of dental caries was quantitatively monitored every 24 h for 3 days. Caries lesions were shown as volumes of reduced reflectivity in both the transversal and longitudinal images. It was observed that the reflectivity of tooth tissue decreased with increasing demineralization time. A linear correlation was observed between the mineral loss in enamel measured by TMR and the percentage reflectivity loss measured by OCT. Neither the presence of saliva, plague, Dacron gauze, plaque/Dacron gauze, nor lesion staining nor the level of ambient lighting significantly affected OCT detection and analysis of an incipient caries. We concluded that OCT could detect early enamel caries and quantitatively monitor the demineralization of the tissue. The reflectivity loss in tooth tissue during demineralization, measured by OCT, could be related to the amount of mineral lost during the demineralization.

Item Type: Article
Uncontrolled keywords: Computerized tomography, Dental materials, Fluorescence, Radiography, Reflection, Tissue, Ultrasonics, Dental caries lesions, Optical coherence tomography, Reflectivity loss, Transverse microradiography, Coherent light
Subjects: Q Science > QC Physics
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 09:19 UTC
Last Modified: 29 May 2019 14:55 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49796 (The current URI for this page, for reference purposes)
  • Depositors only (login required):