Effects of a superpulsed CO2 laser on human teeth

Dirian O. A. Murgo; Blanche Cerruti; Marcela Leal Redigolo; Maria Cristina Chavantes M.D.

doi:10.1117/12.446509

26 October 2001 Effects of a superpulsed CO₂ laser on human teeth

Dirian O. A. Murgo, Blanche Cerruti, Marcela Leal Redigolo, Maria Cristina Chavantes M.D.

Proceedings Volume 4433, Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy; (2001) https://doi.org/10.1117/12.446509
Event: European Conferences on Biomedical Optics, 2001, Munich, Germany

Abstract

The effects of laser exposure on mineralized tissues like enamel have been explored for years as a technique to remove caries and for dental hard-tissue preparation. However the efficiency of this technique has been questioned. In this work, six freshly-extracted third molars were irradiated by a superpulse of CO₂ laser, generally used in Transmyocardio Revascularization, and submitted to Scanning Electron Microscopy (SEM) analyzes. The cavities caused by laser irradiation on the dental tissues were analyzed considering its shape and depth. The CO₂ superpulse presented a high efficiency in the removal of dental mass and no sign of carbonized tissue was found on the ablated surface. All cavities generated by laser irradiation presented a conic shape with average depth depending on energy density applied.

Citation Download Citation

Dirian O. A. Murgo, Blanche Cerruti, Marcela Leal Redigolo, and Maria Cristina Chavantes M.D. "Effects of a superpulsed CO₂ laser on human teeth", Proc. SPIE 4433, Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy, (26 October 2001); https://doi.org/10.1117/12.446509

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KEYWORDS

Gas lasers

Tissues

Carbon monoxide

Scanning electron microscopy

Laser irradiation

Heart

Natural surfaces

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