Transient FEM Calculation of the Spatial Heat Distribution in Hard Dental Tissue During and After IR Laser Ablation

机译：红外激光烧蚀过程中和之后硬齿组织中空间热分布的瞬态有限元计算

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Three dimensional model calculation on the basis of Finite Elements were carried out to simulate the heat distribution under IR laser ablation. The physical constant of dentin were used for heat capacity, heat conductivity etc. Already for a single pulse the results show the temperature distribution at various times after the laser pulse as well as the temperature gradient and the mechanical stress. The time resolution of a single pulse into 80 equal time steps showed the heat deposition during the laser pulse. Even more exiting data were obtained for pulse trains. It is clearly obvious that after 10 pulses (under a repetition rate of 100 Hz) the system reached a dynamical equilibrium. The amount of heat left over in the tissue by the previous pulse is taken away by the following pulse by removing heated tissue.

机译：在有限元的基础上进行了三维模型计算，以模拟红外激光烧蚀下的热分布。牙本质的物理常数用于热容，热导率等。对于单个脉冲，结果已显示出激光脉冲后不同时间的温度分布以及温度梯度和机械应力。将单个脉冲分成80个相等的时间步长的时间分辨率显示了激光脉冲期间的热量沉积。对于脉冲序列，可以获得更多的现有数据。很明显，经过10个脉冲（在100 Hz的重复频率下），系统达到了动态平衡。通过前一个脉冲残留在组织中的热量通过去除加热的组织而被下一个脉冲带走。

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来源
《Conference on Lasers in Dentistry Ⅶ Jan 21-22, 2001, San Jose, USA》|2001年|p.61-71|共11页
会议地点 San Jose CA(US)
作者
Guenter Uhrig; Dirk Meyer; Hans-Jochen Foth;
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作者单位

Dept. of Physics, University of Kaiserslautern, Germany;

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会议组织
原文格式 PDF
正文语种 eng
中图分类基础医学;
关键词
finite element calculation; heat conduction; laser ablation; dentin;

机译：有限元计算导热激光烧蚀牙本质;

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1. Femtosecond laser ablation on dental hard tissues-Analysis of ablated profile near an interface using local effective intensity [J] . Dutra-Correa M., Nicolodelli G., Rodrigues J.R., Laser Physics: An International Journal devoted to Theoretical and Experimental Laser Research and Application . 2011,第5期

机译：飞秒激光在牙齿硬组织上的烧蚀-使用局部有效强度分析界面附近的烧蚀轮廓
2. High-speed scanning ablation of dental hard tissues with a λ = 9.3 μm CO2 laser: adhesion, mechanical strength, heat accumulation, and peripheral thermal damage [J] . Daniel Nguyen Kwang Chang Saba Hedayatollahnajafi Michal Staninec Kenneth Chan Robert Lee and Daniel Fried J. Biomed. Op . 2011,第7期

机译：用λ= 9.3μmCO2激光对牙齿硬组织进行高速扫描消融：附着力，机械强度，热量积聚和周围的热损伤
3. High-speed scanning ablation of dental hard tissues with a λ = 9.3 μm CO_2 laser: adhesion, mechanical strength,heat accumulation, and peripheral thermal damage [J] . Daniel Nguyen, Kwang Chang, Saba Hedayatollahnajafi, Journal of biomedical optics . 2011,第7期

机译：用λ= 9.3μmCO_2激光对牙齿硬组织进行高速扫描消融：附着力，机械强度，热量积聚和周围的热损伤
4. Transient FEM Calculation of the Spatial Heat Distribution in Hard Dental Tissue During and After IR Laser Ablation [C] . Hans-Jochen Foth, Dirk Meyer, Guenter Uhrig Conference on lasers in dentistry . 2001

机译：IR激光烧蚀期间和后硬牙组织空间热分布的瞬态有限元素计算
5. A study of water-induced Er:YAG laser ablation of dental hard tissue. [D] . Kwon, Yonghoon. 1997

机译：水诱导牙齿硬组织Er：YAG激光消融的研究。
6. High-speed scanning ablation of dental hard tissues with a λ = 9.3 μm CO2 laser: adhesion mechanical strength heat accumulation and peripheral thermal damage [O] . Daniel Nguyen, Kwang Chang, Saba Hedayatollahnajafi, 2011

机译：用λ= 9.3μm的CO2激光对牙齿硬组织进行高速扫描消融：附着力机械强度热量积聚和周围的热损伤
7. Femtosecond laser ablation on dental hard tissues - Analysis of ablated profile near an interface using local effective intensity [O] . Corrêa M. Dutra, Nicolodelli G., Rodrigues J. R., 2011

机译：飞秒激光在牙齿硬组织上的消融-使用局部有效强度分析界面附近的消融轮廓
8. Hydrodynamic Model for Ultra-Short Pulse Ablation of Hard Dental Tissue [R] . R. A. London, D. S. Bailey, D. A. Young 1996

机译：超短脉冲消融硬组织的水动力学模型

Transient FEM Calculation of the Spatial Heat Distribution in Hard Dental Tissue During and After IR Laser Ablation

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