| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2026-06-11 23:58 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2026 Meeting
Section: Atomic and Molecular Physics. Astrophysics. Applications. Optics, Spectroscopy, Plasma and Lasers
Title:
Comparative study of the human tooth by Raman Spectroscopy
Authors:
Georgiana IVAN (1,2), Cătălin LUCULESCU (2)
Affiliation:
1) Universitatea din București, Facultatea de Fizica
2) National Institute for Lasers, Plasma and Radiation Physics, CETAL
E-mail
georgiana.ivan@inflpr.ro
Keywords:
Polarized Raman spectroscopy, enamel, dentin, cementum, hydroxyapatite
Abstract:
This study presents a comparative Raman Spectroscopy investigation of the primary structural components of the human tooth: enamel, dentin, and cementum. The spectral analysis focused on the dominant inorganic ν1 PO4 vibrational mode at 959 cm-1 (indicative of hydroxyapatite), the A- and B-type carbonates around 1070 and 1110 cm-1. Enamel showed the highest crystallinity, characterized by a sharp, highly intense phosphate peak without the presence of organic components. ν1 PO4. In contrast, dentin displayed a well-defined spectral mix of both mineral and organic components, reflecting its composite structural nature. Cementum, covering the tooth root, has a similar structure to dentine.
The differences between tooth components and between patients will be presented for both polarized and unpolarized micro-Raman Spectroscopy.
Acknowledgement:
We acknowledge the support of the National Interest Infrastructure facility, IOSIN—CETAL at INFLPR (for Raman measurements)
|
|
|
|