6 March 2012 Photomechanical model of tooth enamel ablation by Er-laser radiation
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Abstract
The photomechanical model of ablation of human tooth enamel is described in this work. It takes into account the structural peculiarities of enamel: free water in the enamel pores or cracks. We consider the photomechanical destruction of the enamel rods of hydroxyapatite by the pressure of water contained in the enamel pores and heated by laser radiation. This model takes into account attenuation by the Lambert-Beer law when radiation passes through the tissue and the fact that the tissue removal occurs when a unit volume of water was heated to the critical temperature. Decreasing logarithmic dependence of the enamel removal efficiency on the energy density was obtained as a result of the calculations. The shape of this function follows the shape of the experimental curve.
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A. V. Belikov, K. V. Shatilova, A. V. Skrypnik, R. G. Vostryakov, N. O. Maykapar, "Photomechanical model of tooth enamel ablation by Er-laser radiation", Proc. SPIE 8221, Optical Interactions with Tissue and Cells XXIII, 82210K (6 March 2012); doi: 10.1117/12.911975; https://doi.org/10.1117/12.911975
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