Thermal and mechanical stress in hard dental tissue under IR laser ablation

Guenter Uhrig; Hans-Jochen Foth

doi:10.1117/12.380821

24 March 2000 Thermal and mechanical stress in hard dental tissue under IR laser ablation

Guenter Uhrig, Hans-Jochen Foth

Proceedings Volume 3910, Lasers in Dentistry VI; (2000) https://doi.org/10.1117/12.380821
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Three dimensional model calculation on the basis of Finite Elements were carried out to simulate the heat distribution process under IR laser ablation. Several models were built up to study the time behavior of the heat stored in the walls of a laser induced crater. The time resolved data show a concentration of heat in the center of the crater and a strong thermal stress in the corner ring of the cylindrical crater. The results calculated for the thermal properties of dentine are compared with experimentally observed two dimensional temperature distributions monitored by an IR camera.

Citation Download Citation

Guenter Uhrig and Hans-Jochen Foth "Thermal and mechanical stress in hard dental tissue under IR laser ablation", Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); https://doi.org/10.1117/12.380821

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