Pulsed Nd:YAG laser selective ablation of surface enamel caries: I. Photoacoustic response and FTIR spectroscopy

David M. Harris; Daniel Fried

doi:10.1117/12.380823

24 March 2000 Pulsed Nd:YAG laser selective ablation of surface enamel caries: I. Photoacoustic response and FTIR spectroscopy

David M. Harris, Daniel Fried

Author Affiliations +

Proceedings Volume 3910, Lasers in Dentistry VI; (2000) https://doi.org/10.1117/12.380823
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

Enamel caries lesions on extracted teeth were ablated with a pulsed Nd:YAG or Er:YAG laser. Tissue ablation was accompanied by a 'popping' sound (the photoacoustic response). Analysis of the photoacoustic response yields insights into the laser/tissue interactions. Fourier Transform Infrared (FTIR) Spectroscopy of lesions before ablation show a strong protein component associated with organic material (i.e., bacteria). Following ablation this protein component is absent.

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David M. Harris and Daniel Fried "Pulsed Nd:YAG laser selective ablation of surface enamel caries: I. Photoacoustic response and FTIR spectroscopy", Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); https://doi.org/10.1117/12.380823

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