IDENTIFICATION OF CARIOUS LESIONS IN ENAMEL USING OPTICAL COHERENCE TOMOGRAPHY

  • Nauman Bari Khan BDS, MSc, Assistant Professor Oral Biology, Army Medical College, National University of Medical Sciences, Rawalpindi, Pakistan.
  • Simon Rawlinson PhD, Senior Lecturer, Institute of Dentistry, Barts and The London, Queen Mary, University of London.
  • Pete Tomlins PhD, Senior Lecturer, Institute of Dentistry, Barts and The London, Queen Mary, University of London.
  • Paul Anderson PhD, Professor, Institute of Dentistry, Barts and The London, Queen Mary, University of London.
Keywords: Early caries detection, Optical Coherence Tomography (OCT), Enamel, XMT

Abstract

The aim of this research was to asses wether OCT could be used for early detection of carious/ demineralised lesions in enamel. If application of Optical coherence tomography (OCT) could be used in early, chair-side detection of caries and therefore initiate the prompt treatment strategies required.

10 extracted teeth were selected with no visible carious lesion. All teeth were scanned using Xray Microtomography (XMT). Four teeth were found with areas of demineralisation which were not visible to the naked eye. The same lesions were then scanned using OCT. SAM software was used to analyse the depth of penetration. OCTview software was used for the OCT scans and ImageJ software was used to enhance the OCT images.

OCT was helpful in detecting carious lesions in enamel. Average depth of penetration in carious lesion: 10.49 +/-3.69 μm, sound enamel; 8.49 +/- 5.2 μm. Depth of light penetration was influenced by the degree of mineralisation. The two-tailed P value was less than 0.0001. By conventional criteria, this difference was considered to be extremely statistically significant.

Published
2020-07-01
How to Cite
Nauman Bari Khan, Simon Rawlinson, Pete Tomlins, & Paul Anderson. (2020). IDENTIFICATION OF CARIOUS LESIONS IN ENAMEL USING OPTICAL COHERENCE TOMOGRAPHY. Pakistan Oral & Dental Journal, 40(2), 84-87. Retrieved from http://www.podj.com.pk/index.php/podj/article/view/546
Section
Restorative Dentistry