Accuracy of Kubelka-Munk reflectance theory applied to human dentin and enamel

James Ragain, W. M. Johnston

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

The Kubelka-Munk (K-M) theory provides a reflectance model for translucent materials placed on backings of different colors. We hypothesize that Kubelka-Munk (K-M) theoretical diffuse reflectance spectra of dentin and enamel are in good agreement with observed diffuse reflectance. The aim of this study was to measure the reflectance of enamel and dentin specimens and to compare the measured values of reflectance with K-M theoretical values. Disc-shaped specimens of enamel, dentin, and enamel/dentin were prepared from extracted teeth. Diffuse reflectance spectra were measured on three backings by means of a reflectance spectrophotometer over every wavelength (λ) from 400 to 700 nm at three thicknesses. The measured reflectance values were fit by non-linear regression to corrected K-M theory. The low value of the reported errors associated with the application of K-M theory illustrated that the theoretical diffuse reflectance spectra of dentin and enamel are in good agreement with the observed diffuse reflectance.

Original languageEnglish (US)
Pages (from-to)449-452
Number of pages4
JournalJournal of Dental Research
Volume80
Issue number2
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

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Dentin
Dental Enamel
Tooth
Color

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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Accuracy of Kubelka-Munk reflectance theory applied to human dentin and enamel. / Ragain, James; Johnston, W. M.

In: Journal of Dental Research, Vol. 80, No. 2, 01.01.2001, p. 449-452.

Research output: Contribution to journalArticle

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