Novel CO2 laser system for hard tissue ablation

Vladimir B. Krapchev; Christopher D. Rabii; James A. Harrington

doi:10.1117/12.184916

7 September 1994 Novel CO2 laser system for hard tissue ablation

Vladimir B. Krapchev, Christopher D. Rabii, James A. Harrington

Proceedings Volume 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV; (1994) https://doi.org/10.1117/12.184916
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

A line-tunable and variable pulselength CO₂ laser system for ablation of dental and bone tissues has been tested. To avoid the undesirable effects of plasma formation, acoustic shock waves and collateral thermal damage to the tissues, we have found an optimum laser pulselength in the 10 - 20 microseconds range. At a fluence of 30 J/cm² and laser wavelength of 10.6 micrometers the ablation depths in enamel (dentin) were 12(18) micrometers and no significant noise was observed. Without water cooling enamel showed no visible color change, while some minimal carbonization of dentin was present even at low pulse repetition frequencies.

Citation Download Citation

Vladimir B. Krapchev, Christopher D. Rabii, and James A. Harrington "Novel CO2 laser system for hard tissue ablation", Proc. SPIE 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV, (7 September 1994); https://doi.org/10.1117/12.184916

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