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Proceedings Paper

Comparison of violet diode laser with CO2 laser in surgical performance of soft tissues
Author(s): H. Hatayama; J. Kato; A. Inoue; G. Akashi; Y. Hirai
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Paper Abstract

The violet diode laser (405nm) has recently begun to be studied for surgical use and authors reported the soft tissue could be effectively incised by irradiation power of even less than 1W. The wavelength of this laser is highly absorbed by hemoglobin, myoglobin or melanin pigment. Cutting or ablating soft tissues by lower irradiation power might be preferable for wound healing. The CO2 laser is known to be preferable for low invasive treatment of soft tissues and widely used. The CO2 laser light (10.6μm) is highly absorbed by water and proper for effective ablation of soft tissues. In this paper, we report the comparison of the violet diode laser with the CO2 laser in surgical performance of soft tissues. Tuna tissue was used as an experimental sample. In the case of the violet diode laser, extensive vaporization of tissue was observed after the expansion of coagulation. Carbonization of tissue was observed after the explosion. On the other hand, consecutive vaporization and carbonization were observed immediately after irradiation in the case of CO2 laser. The violet diode laser could ablate tissue equivalently with the CO2 laser and coagulate larger area than the CO2 laser. Therefore the violet diode laser might be expectable as a surgical tool which has excellent hemostatis.

Paper Details

Date Published: 8 March 2007
PDF: 8 pages
Proc. SPIE 6425, Lasers in Dentistry XIII, 64250E (8 March 2007); doi: 10.1117/12.699475
Show Author Affiliations
H. Hatayama, Sumitomo Electric Industries, Ltd. (Japan)
J. Kato, Tokyo Dental College (Japan)
A. Inoue, Sumitomo Electric Industries, Ltd. (Japan)
G. Akashi, Tokyo Dental College (Japan)
Y. Hirai, Tokyo Dental College (Japan)

Published in SPIE Proceedings Vol. 6425:
Lasers in Dentistry XIII
Peter Rechmann D.D.S.; Daniel Fried, Editor(s)

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