ISSN 0021-3454 (print version)
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vol 67 / February, 2024
Article

DOI 10.17586/0021-3454-2021-64-1-63-70

UDC 616.314:535.346.6

USING THE REFLECTION SPECTROSCOPY METHOD TO RECOGNIZE THE AUTHENTICITY OF DENTAL RESTORATION MATERIALS

D. . Kuzmina
St. Petersburg State University, Faculty of Dentistry; Professor


E. E. Majorov
Saint-Petersburg state university of aerospace instrumentation; Associate professor


L. I. Shalamay
Pavlov First St. Petersburg State Medical University, Department of Therapeutic Dentistry and Periodontology ;


E. Y. Mendosa
A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Department of Clinical Dentistry;


N. S. Narushak
Pavlov University, Department of Therapeutic Dentistry and Periodontics;


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Abstract. The relevance of the method of reflection spectroscopy for the study of modern dental restoration materials is demonstrated. An automated spectral device "Fluorat-02-panorama" with a developed optical attachment for measuring the reflection spectra of the studied samples is presented. Spectral dependences of the reflection coefficient of composite materials "Estelite Asteria" in “enamel” and “body” shades were obtained, and reflection spectra for samples of both genuine and fake materials were measured. It is shown that for a fake material, the spectral reflection curves are deformed, the maximum values of the reflection coefficient are shifted to the long-wave region of the spectrum, and there is also a significant decrease in the value of the reflection coefficient in the wavelength range of 380...780 nm.
Keywords: reflection spectroscopy, reflection coefficient, therapeutic dentistry, composite material, inorganic filler

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