Optical Coherence Tomography for dental caries detection and analysis

Bennett T Amaechi, Adrian G. Podoleanu, Gleb Komarov, Susan M. Higham, David A. Jackson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

The ability of an en-face Optical Coherence Tomography (OCT) system to detect and quantitatively monitor the demineralisation of teeth to produce enamel and dentine (root) caries was determined and validated with an established method of quantifying demineralisation, transverse microradiography (TMR). We used an OCT system which can collect A-scans, B-scans (longitudinal images) and C-scans (en-face images). The development of enamel and root caries, by 3-day demineralisation in acidic buffer solution, was assessed quantitatively every 24 hours. Caries lesions were shown as volumes of reduced reflectivity in both the transversal and longitudinal images. The A-scan, which showed the levels of reflectivity versus the depth of penetration into the tissue, was used for the quantitative analysis of the lesions. Results demonstrated that the reflectivity of tooth tissue decreased with increasing demineralisation time. A linear correlation was observed between the mineral loss in enamel (r=1.0) and dentine (r = 0.957) measured by TMR and the percentage reflectivity loss measured by OCT. We concluded that OCT could detect incipient enamel and root caries and quantitatively monitor the demineralisation of the tissue. The reflectivity loss in tooth tissue during demineralisation, measured by OCT, could be related to the amount of mineral lost during the demineralisation.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages100-108
Number of pages9
Volume4610
DOIs
StatePublished - 2002
EventLasers in Dentistry VIII - San Jose, CA, United States
Duration: Jan 20 2002Jan 21 2002

Other

OtherLasers in Dentistry VIII
CountryUnited States
CitySan Jose, CA
Period1/20/021/21/02

Fingerprint

Optical tomography
enamels
Enamels
tomography
reflectance
teeth
Tissue
lesions
Minerals
minerals
quantitative analysis
penetration
buffers
Chemical analysis

Keywords

  • Caries assessment
  • Caries diagnosis
  • Confocal imaging
  • Dental caries
  • Dental imaging
  • Dentine caries
  • Enamel caries
  • Optical coherence tomography
  • Root caries
  • Transverse microradiography

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Amaechi, B. T., Podoleanu, A. G., Komarov, G., Higham, S. M., & Jackson, D. A. (2002). Optical Coherence Tomography for dental caries detection and analysis. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4610, pp. 100-108) https://doi.org/10.1117/12.469309

Optical Coherence Tomography for dental caries detection and analysis. / Amaechi, Bennett T; Podoleanu, Adrian G.; Komarov, Gleb; Higham, Susan M.; Jackson, David A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610 2002. p. 100-108.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Amaechi, BT, Podoleanu, AG, Komarov, G, Higham, SM & Jackson, DA 2002, Optical Coherence Tomography for dental caries detection and analysis. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 4610, pp. 100-108, Lasers in Dentistry VIII, San Jose, CA, United States, 1/20/02. https://doi.org/10.1117/12.469309
Amaechi BT, Podoleanu AG, Komarov G, Higham SM, Jackson DA. Optical Coherence Tomography for dental caries detection and analysis. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610. 2002. p. 100-108 https://doi.org/10.1117/12.469309
Amaechi, Bennett T ; Podoleanu, Adrian G. ; Komarov, Gleb ; Higham, Susan M. ; Jackson, David A. / Optical Coherence Tomography for dental caries detection and analysis. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610 2002. pp. 100-108
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