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Quantifying the Demineralisation of Enamel Using a Hyperspectral Camera Measuring Fluorescence Loss
Roberts, Jonathan M. Bradshaw, David J. Lynch, Richard J. M. Higham, Susan M. Valappil, Sabeel P.
Roberts, Jonathan M.
Bradshaw, David J.
Lynch, Richard J. M.
Higham, Susan M.
Valappil, Sabeel P.
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Publication Date
2021-10-30
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Abstract
Background
The gold standard for quantifying mineral loss of enamel is transverse microradiography (TMR) and is complimented by the non-destructive quantitative light induced fluorescence (QLF) which measures changes in autofluorescence. Fluorescence loss has been shown to correlate with mineral loss. Building upon the established method, the use of hyperspectral fluorescence imaging (HI) allows the capture of a broader range of wavelengths to quantify fluorescence changes more accurately.
Methods
Bovine Enamel was demineralised within the dual constant depth film fermenter over 14 days and analysed using TMR, QLF and HI. The mineral change values were compared using Pearson's Correlation Coefficient.
Results
The analysis showed a statistically significant correlation that was equal between TMR and HI (r = 0.844) and TMR and QLF (r = 0.844), but weaker between QLF and HI (r = 0.811).
Conclusions
The correlations indicate that HI is a promising valid non-destructive method for quantifying mineral loss from bovine enamel that is as accurate as QLF and complements TMR.
Citation
Roberts, J. M., Bradshaw, D. J., Lynch, R. J. M., Higham. S. M., & Valappil, S. P. (2021). Quantifying the demineralisation of enamel using a hyperspectral camera measuring fluorescence loss. Photodiagnosis and Photodynamic Therapy, 36, 102603. https://doi.org/10.1016/j.pdpdt.2021.102603
Publisher
Elsevier
Journal
Photodiagnosis and Photodynamic Therapy
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Article
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Series/Report no.
ISSN
1572-1000
EISSN
1873-1597