Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy

Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy Publisher

Khosroshahi ME^{1, 2, 3} ; Valizadeh S⁴

Show Affiliations

1. Laser & Nanobiophotonic Laboratory, Faculty of Biomedical Engineering, Amirkabir University of Technology, Iran
2. Nanobiophotonic & Biomedical Research Laboratory, MIS-Electronics Inc., Richmond Hill, Canada
3. Department of Mechanical and Industrial Engineering, University of Toronto, Canada
4. Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran

Source: Optics and Laser Technology Published:2020

Abstract

A combined technique of photoacoustic sensor and laser-induced plasma spectroscopy is used to investigate the interaction of pulse Nd: YAG laser with healthy, carious dental tissue and amalgam. The results showed that applied force hence the corresponding pressure increases with laser fluence. At low fluences below the threshold ≈20 Jcm−2, a bipolar thermoelastic signal was observed where gradually the amplitude of the compression part increased at higher values. A non-linear behaviour was observed at about threshold. The maximum pressure of ≈8 kPa was measured for healthy tissues. While the transmitted acoustic energy was increased with laser fluence, the corresponding ratio of acoustic to optical energy was decreased. The line emissions distinctly indicated both the matrix and non-matrix elements in healthy, carious and amalgam samples. The temperature of the majority of elements varied between 590 and 15000 K corresponding to tin and silver as lowest and highest respectively except for carbon at ≈4200 K. The high temperature vaporized products can raise some health issues, particularly to the patient if a large amount is inhaled. © 2020

Style	Citing Format
MLA	Khosroshahi ME, Valizadeh S. "Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy." Optics and Laser Technology, vol. 128, no. , 2020, pp. -.
APA	Khosroshahi ME, Valizadeh S (2020). Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy. Optics and Laser Technology, 128(), -.
Chicago	Khosroshahi ME, Valizadeh S. "Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy." Optics and Laser Technology 128, no. (2020): -.
Harvard	Khosroshahi ME, Valizadeh S (2020) 'Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy', Optics and Laser Technology, 128(), pp. -.
Vancouver	Khosroshahi ME, Valizadeh S. Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy. Optics and Laser Technology. 2020;128():-.
BibTex	@article{ author = {Khosroshahi ME and Valizadeh S}, title = {Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy}, journal = {Optics and Laser Technology}, volume = {128}, number = {}, pages = {-}, year = {2020} }
RIS	TY - JOUR AU - Khosroshahi ME AU - Valizadeh S TI - Measurement of Pulse Nd: Yag Laser-Induced Stress and Analysis of Dental Tissue and Amalgam Plume Using Uniaxial Polyvinylidene Fluoride-Based Photoacoustic Sensor and Plasma Spectroscopy JO - Optics and Laser Technology VL - 128 IS - SP - EP - PY - 2020 ER -

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