Assessment of dental caries with optical coherence tomography: Effect of ambient factors

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

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

1 Citation (Scopus)

Abstract

Optical Coherence Tomography (OCT) has been used to produce longitudinal images of dental tissues. We investigated the influence on OCT system, of factors that could limit detection and quantitative monitoring of incipient caries. The effect of such factors as saliva, dental plaque, lesion staining, ambient lighting, and Dacron gauze (used to encourage plaque growth in in situ caries studies) on OCT imaging and analysis were determined during demineralisation to produce early caries. The system can collect A-scans, B-scans (longitudinal images) and C-scans (en-face images). Caries lesions were shown as volumes of reduced reflectivity. A-scan, which showed the levels of reflectivity versus the depth of penetration into the tooth tissue, was used for the quantitative analysis of the reflectivity loss. The reflectivity of the tooth tissue decreased with demineralisation. The percentage change in reflectivity of the tissue was quantified as a measure of the change in mineral status of the tissue following demineralisation. Neither the presence of saliva, plaque, Dacron gauze, plaque/Dacron gauze, nor lesion staining nor the level of ambient lighting significantly affected OCT detection and analysis of an incipient caries.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages196-200
Number of pages5
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
Dacron (trademark)
gauze
tomography
Tissue
reflectance
lesions
saliva
staining
teeth
illuminating
Lighting
quantitative analysis
Minerals
penetration
minerals
Imaging techniques
Monitoring
Chemical analysis

Keywords

  • Ambient lighting
  • Caries diagnosis
  • Confocal imaging
  • Dacron gauze
  • Demineralisation
  • Dental imaging
  • Dental plaque
  • Lesion staining
  • Optical coherence tomography
  • Saliva

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Amaechi, B. T., Podoleanu, A. G., Higham, S. M., & Jackson, D. A. (2002). Assessment of dental caries with optical coherence tomography: Effect of ambient factors. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4610, pp. 196-200) https://doi.org/10.1117/12.469326

Assessment of dental caries with optical coherence tomography : Effect of ambient factors. / Amaechi, Bennett T; Podoleanu, Adrian G.; Higham, Susan M.; Jackson, David A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610 2002. p. 196-200.

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

Amaechi, BT, Podoleanu, AG, Higham, SM & Jackson, DA 2002, Assessment of dental caries with optical coherence tomography: Effect of ambient factors. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 4610, pp. 196-200, Lasers in Dentistry VIII, San Jose, CA, United States, 1/20/02. https://doi.org/10.1117/12.469326
Amaechi BT, Podoleanu AG, Higham SM, Jackson DA. Assessment of dental caries with optical coherence tomography: Effect of ambient factors. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610. 2002. p. 196-200 https://doi.org/10.1117/12.469326
Amaechi, Bennett T ; Podoleanu, Adrian G. ; Higham, Susan M. ; Jackson, David A. / Assessment of dental caries with optical coherence tomography : Effect of ambient factors. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4610 2002. pp. 196-200
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