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Proceedings Paper

Study the penetration of IR laser radiation in human teeth: determination of the absorbed and scattered parts
Author(s): Pepa Uzunova; Stanislava Rabadgiiska; Tzonko Uzunov; Hristo Kisov; Nadejda Kaimakanova; Margarita Deneva; Emil Dinkov; Marin Nenchev
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Paper Abstract

By using the developed by us approaches and instrumentation, we have obtained and presented series of systematized data, which are important for the use of the laser light in infrared (IR) spectral region. The obtained data include: 1) reflectivity of the human tooth dentin; 2) the spatial intensity distribution in the cross-section of the light beam penetrating the tooth’s dentin; 3) the absorbed and the diffused parts of the laser light that have been determined separately through combination of optical and calorimetric techniques. The last result is the most important because it permits to calculate the dentin absorption and scattering coefficients. The study is performed for the laser light at two easily generated wavelengths – 1.06 μm and 1.36 μm, emitted by the Nd:YAG laser that is well known, commercially available, economical and widely used in many laboratories and medical institutions. The study is made on the basis of fresh in-vitro teeth samples from the persons of Bulgaria, Sofia region.

Paper Details

Date Published: 15 March 2013
PDF: 7 pages
Proc. SPIE 8770, 17th International School on Quantum Electronics: Laser Physics and Applications, 87701A (15 March 2013); doi: 10.1117/12.2014113
Show Author Affiliations
Pepa Uzunova, Medical Univ. of Sofia (Bulgaria)
Stanislava Rabadgiiska, Technical Univ. of Sofia (Bulgaria)
Tzonko Uzunov, Medical Univ. of Sofia (Bulgaria)
Hristo Kisov, Technical Univ. of Sofia (Bulgaria)
Nadejda Kaimakanova, Paisii Hilendarski Univ. of Plovdiv (Bulgaria)
Margarita Deneva, Technical Univ. of Sofia (Bulgaria)
Emil Dinkov, Technical Univ. of Sofia (Bulgaria)
Marin Nenchev, Technical Univ. of Sofia (Bulgaria)


Published in SPIE Proceedings Vol. 8770:
17th International School on Quantum Electronics: Laser Physics and Applications
Tanja N. Dreischuh; Albena T. Daskalova, Editor(s)

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