Interaction of a pulsed alexandrite laser with hard and soft biological tissue

Lorna M. Paterson; Mark Russell Dickinson; Terence A. King; David C. Watts

doi:10.1117/12.168039

1 February 1994 Interaction of a pulsed alexandrite laser with hard and soft biological tissue

Lorna M. Paterson, Mark Russell Dickinson, Terence A. King, David C. Watts

Proceedings Volume 2077, Laser Interaction with Hard and Soft Tissue; (1994) https://doi.org/10.1117/12.168039
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

An alexandrite laser has been used in the fixed-Q and Q-switched modes, at the fundamental and frequency doubled wavelengths on a selection of hard and soft tissue. In an investigation into the potential use of the laser for the removal of deep lying lesions such as cutaneous vascular lesions and tatoos, studies have been carried out to characterize the depth and extent of the laser/tissue interaction in samples of tissue which greatly absorb the 750 nm radiation. The interaction of the laser radiation with extracted teeth was investigated looking at healthy enamel and dentine, and caries. Surface profile measurements of the enamel and dentine before and after irradiation show little physical effect of the laser irradiation, whereas caries appear to be ablated.

Citation Download Citation

Lorna M. Paterson, Mark Russell Dickinson, Terence A. King, and David C. Watts "Interaction of a pulsed alexandrite laser with hard and soft biological tissue", Proc. SPIE 2077, Laser Interaction with Hard and Soft Tissue, (1 February 1994); https://doi.org/10.1117/12.168039

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