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19 January 1996 Scanning ablation of dental hard tissue with Erbium laser radiation
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Pulsed laser radiation in the range of very high water absorption near 3 micrometer is well known to be effective for the ablation of dental hard tissues. However ablation quality is limited by thermal side effects if using higher pulse repetition rates. This paper presents qualitative and quantitative results of dentin and enamel ablation with a scanned laser beam (emission wavelength 2.94 micrometer) and simultaneously, use of spray cooling. It is known that ablation of enamel is more problematic because of the low content of water. It was observed that the creation of unwanted 'recrystallizations' depended on a complex dependence of spot size, energy density, quantity of spray cooling and pulse duration. 'Recrystallizations' can be prevented by using optimized parameters.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Zeck, Hartmut Benthin, Thomas P. Ertl, G. K. Siebert, and Gerhard J. Mueller "Scanning ablation of dental hard tissue with Erbium laser radiation", Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996);

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