Eur. Phys. J. Appl. Phys.
Volume 65, Number 2, February 2014
|Number of page(s)||7|
|Section||Semiconductors and Devices|
|Published online||14 February 2014|
Analytical investigation of thermal stress in enamel and dentin under CW and pulse Er:YAG solid-state laser
Department of Physics, School of Science, Bilkent University, Ankara, Turkey
2 Department of Physics, Khorasgan (Isfahan) Branch, Islamic Azad University, Isfahan, Iran
a e-mail: email@example.com
Revised: 6 December 2013
Accepted: 19 December 2013
Published online: 14 February 2014
The aim of this work is to evaluate thermal stress of Er:YAG laser radiation on enamel and dentin of the dental. The transient state heat conduction equation for pulse wave laser regime with energy of 100 mJ, 300 mJ and steady state heat conduction equation for CW regime with powers of 1 W, 5 W was solved analytically. Then, the thermally induced stress was investigated following the calculation of the temperature distribution. Using the thermo-mechanical characteristics of the dentin and the enamel, all components of stress were obtained. The thermal stress of Er:YAG laser radiation on the enamel and the dentin calculated in this work may be useful for clinical applications.
© EDP Sciences, 2014
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