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

Bennett T Amaechi, S. M. Higham, A. Gh Podoleanu, J. A. Rogers, D. A. Jackson

Research output: Contribution to journalArticle

108 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1092-1093
Number of pages2
JournalJournal of Oral Rehabilitation
Volume28
Issue number12
StatePublished - Dec 2001

Fingerprint

Optical Coherence Tomography
Dental Caries
Minerals
Tooth Demineralization
Tooth
Buffers
Light

Keywords

  • Caries assessment
  • Caries diagnosis
  • Demineralization
  • Dental imaging
  • Optical coherence tomography
  • Optical methods

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Amaechi, B. T., Higham, S. M., Podoleanu, A. G., Rogers, J. A., & Jackson, D. A. (2001). Use of optical coherence tomography for assessment of dental caries: Quantitative procedure. Journal of Oral Rehabilitation, 28(12), 1092-1093.

Use of optical coherence tomography for assessment of dental caries : Quantitative procedure. / Amaechi, Bennett T; Higham, S. M.; Podoleanu, A. Gh; Rogers, J. A.; Jackson, D. A.

In: Journal of Oral Rehabilitation, Vol. 28, No. 12, 12.2001, p. 1092-1093.

Research output: Contribution to journalArticle

Amaechi, BT, Higham, SM, Podoleanu, AG, Rogers, JA & Jackson, DA 2001, 'Use of optical coherence tomography for assessment of dental caries: Quantitative procedure', Journal of Oral Rehabilitation, vol. 28, no. 12, pp. 1092-1093.
Amaechi, Bennett T ; Higham, S. M. ; Podoleanu, A. Gh ; Rogers, J. A. ; Jackson, D. A. / Use of optical coherence tomography for assessment of dental caries : Quantitative procedure. In: Journal of Oral Rehabilitation. 2001 ; Vol. 28, No. 12. pp. 1092-1093.
@article{0589abe8034d48faa08b8bb0a36dee06,
title = "Use of optical coherence tomography for assessment of dental caries: Quantitative procedure",
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.",
keywords = "Caries assessment, Caries diagnosis, Demineralization, Dental imaging, Optical coherence tomography, Optical methods",
author = "Amaechi, {Bennett T} and Higham, {S. M.} and Podoleanu, {A. Gh} and Rogers, {J. A.} and Jackson, {D. A.}",
year = "2001",
month = "12",
language = "English (US)",
volume = "28",
pages = "1092--1093",
journal = "Journal of Oral Rehabilitation",
issn = "0305-182X",
publisher = "Wiley-Blackwell",
number = "12",

}

TY - JOUR

T1 - Use of optical coherence tomography for assessment of dental caries

T2 - Quantitative procedure

AU - Amaechi, Bennett T

AU - Higham, S. M.

AU - Podoleanu, A. Gh

AU - Rogers, J. A.

AU - Jackson, D. A.

PY - 2001/12

Y1 - 2001/12

N2 - 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.

AB - 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.

KW - Caries assessment

KW - Caries diagnosis

KW - Demineralization

KW - Dental imaging

KW - Optical coherence tomography

KW - Optical methods

UR - http://www.scopus.com/inward/record.url?scp=0035753916&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035753916&partnerID=8YFLogxK

M3 - Article

C2 - 11874506

AN - SCOPUS:0035753916

VL - 28

SP - 1092

EP - 1093

JO - Journal of Oral Rehabilitation

JF - Journal of Oral Rehabilitation

SN - 0305-182X

IS - 12

ER -