FT-Raman investigation of human dental enamel surfaces

J. Mihály, Veronika Gombás, Alias Afishah, J. Mink

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

FT-Raman spectra of human enamel surfaces from sound, affected (with 1 cavity) and highly affected (with at least 3 cavities) tooth samples were analyzed by principal component analysis (PCA). Major differences between the unaffected and affected tooth samples seem to arise from the structural changes along the c-axis of hydroxyapatite, the chief crystalline component of human dental enamel. Based on Fisher index calculations, the most discriminative value was obtained for the intensity of the only Raman active ν2PO3- 4 (E1) symmetric deformation mode at 428 cm-1. Moreover, these changes can be observed through the whole tooth enamel surface, establishing a predisposition to caries correlated to chemical and structural composition of tooth enamel. No spectral changes regarding the CO2- 3 substitution were detected by both nondestructive FT-Raman and FTIR (Fourier transform infrared) spectroscopy of the powdered teeth samples.

Original languageEnglish
Pages (from-to)898-902
Number of pages5
JournalJournal of Raman Spectroscopy
Volume40
Issue number8
DOIs
Publication statusPublished - Aug 2009

Fingerprint

Tooth enamel
Enamels
Durapatite
Hydroxyapatite
Principal component analysis
Fourier transform infrared spectroscopy
Raman scattering
Substitution reactions
Acoustic waves
Crystalline materials
Chemical analysis

Keywords

  • Fisher index
  • FT-Raman spectroscopy
  • FTIR spectroscopy
  • Human dental enamel
  • Principal component analysis

ASJC Scopus subject areas

  • Spectroscopy
  • Materials Science(all)

Cite this

FT-Raman investigation of human dental enamel surfaces. / Mihály, J.; Gombás, Veronika; Afishah, Alias; Mink, J.

In: Journal of Raman Spectroscopy, Vol. 40, No. 8, 08.2009, p. 898-902.

Research output: Contribution to journalArticle

Mihály, J. ; Gombás, Veronika ; Afishah, Alias ; Mink, J. / FT-Raman investigation of human dental enamel surfaces. In: Journal of Raman Spectroscopy. 2009 ; Vol. 40, No. 8. pp. 898-902.
@article{39060462a38e4c2c9d26547343fda074,
title = "FT-Raman investigation of human dental enamel surfaces",
abstract = "FT-Raman spectra of human enamel surfaces from sound, affected (with 1 cavity) and highly affected (with at least 3 cavities) tooth samples were analyzed by principal component analysis (PCA). Major differences between the unaffected and affected tooth samples seem to arise from the structural changes along the c-axis of hydroxyapatite, the chief crystalline component of human dental enamel. Based on Fisher index calculations, the most discriminative value was obtained for the intensity of the only Raman active ν2PO3- 4 (E1) symmetric deformation mode at 428 cm-1. Moreover, these changes can be observed through the whole tooth enamel surface, establishing a predisposition to caries correlated to chemical and structural composition of tooth enamel. No spectral changes regarding the CO2- 3 substitution were detected by both nondestructive FT-Raman and FTIR (Fourier transform infrared) spectroscopy of the powdered teeth samples.",
keywords = "Fisher index, FT-Raman spectroscopy, FTIR spectroscopy, Human dental enamel, Principal component analysis",
author = "J. Mih{\'a}ly and Veronika Gomb{\'a}s and Alias Afishah and J. Mink",
year = "2009",
month = "8",
doi = "10.1002/jrs.2194",
language = "English",
volume = "40",
pages = "898--902",
journal = "Journal of Raman Spectroscopy",
issn = "0377-0486",
publisher = "John Wiley and Sons Ltd",
number = "8",

}

TY - JOUR

T1 - FT-Raman investigation of human dental enamel surfaces

AU - Mihály, J.

AU - Gombás, Veronika

AU - Afishah, Alias

AU - Mink, J.

PY - 2009/8

Y1 - 2009/8

N2 - FT-Raman spectra of human enamel surfaces from sound, affected (with 1 cavity) and highly affected (with at least 3 cavities) tooth samples were analyzed by principal component analysis (PCA). Major differences between the unaffected and affected tooth samples seem to arise from the structural changes along the c-axis of hydroxyapatite, the chief crystalline component of human dental enamel. Based on Fisher index calculations, the most discriminative value was obtained for the intensity of the only Raman active ν2PO3- 4 (E1) symmetric deformation mode at 428 cm-1. Moreover, these changes can be observed through the whole tooth enamel surface, establishing a predisposition to caries correlated to chemical and structural composition of tooth enamel. No spectral changes regarding the CO2- 3 substitution were detected by both nondestructive FT-Raman and FTIR (Fourier transform infrared) spectroscopy of the powdered teeth samples.

AB - FT-Raman spectra of human enamel surfaces from sound, affected (with 1 cavity) and highly affected (with at least 3 cavities) tooth samples were analyzed by principal component analysis (PCA). Major differences between the unaffected and affected tooth samples seem to arise from the structural changes along the c-axis of hydroxyapatite, the chief crystalline component of human dental enamel. Based on Fisher index calculations, the most discriminative value was obtained for the intensity of the only Raman active ν2PO3- 4 (E1) symmetric deformation mode at 428 cm-1. Moreover, these changes can be observed through the whole tooth enamel surface, establishing a predisposition to caries correlated to chemical and structural composition of tooth enamel. No spectral changes regarding the CO2- 3 substitution were detected by both nondestructive FT-Raman and FTIR (Fourier transform infrared) spectroscopy of the powdered teeth samples.

KW - Fisher index

KW - FT-Raman spectroscopy

KW - FTIR spectroscopy

KW - Human dental enamel

KW - Principal component analysis

UR - http://www.scopus.com/inward/record.url?scp=70149107216&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70149107216&partnerID=8YFLogxK

U2 - 10.1002/jrs.2194

DO - 10.1002/jrs.2194

M3 - Article

AN - SCOPUS:70149107216

VL - 40

SP - 898

EP - 902

JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

SN - 0377-0486

IS - 8

ER -