Acoustic differentiation of dental soft- and hard tissues using remote speckle-analysis during Er:YAG ablation

Benjamin Lengenfelder; Benjamin Lengenfelder; Karen Schwarzkopf; Nicolai Oetter; Nicolai Oetter; Fanuel Mehari; Fanuel Mehari; Eric Eschner; Eric Eschner; Florian Klämpfl; Florian Klämpfl; Florian Stelzle; Florian Stelzle; Marco Kesting; Marco Kesting; Zeev Zalevsky; Zeev Zalevsky; Michael Schmidt; Michael Schmidt

doi:10.1117/12.2526578

Opto-Acoustic Methods and Applications in Biophotonics IV
SPIE Proceedings (Optica Publishing Group, 2019),
paper 11077_57
•https://doi.org/10.1117/12.2526578

Acoustic differentiation of dental soft- and hard tissues using remote speckle-analysis during Er:YAG ablation

Benjamin Lengenfelder, Karen Schwarzkopf, Nicolai Oetter, Fanuel Mehari, Eric Eschner, Florian Klämpfl, Florian Stelzle, Marco Kesting, Zeev Zalevsky, and Michael Schmidt

European Conference on Biomedical Optics 2019

Munich Germany
23–25 June 2019
ISBN: 9781510628472

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Poster Session Tuesday - 11077 (PST11077)

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B. Lengenfelder, K. Schwarzkopf, N. Oetter, F. Mehari, E. Eschner, F. Klämpfl, F. Stelzle, M. Kesting, Z. Zalevsky, and M. Schmidt, "Acoustic differentiation of dental soft- and hard tissues using remote speckle-analysis during Er:YAG ablation," in Opto-Acoustic Methods and Applications in Biophotonics IV, Vol. EB104 of SPIE Proceedings (Optica Publishing Group, 2019), paper 11077_57.

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Abstract

The Er: YAG laser has gained significant interest in the field of oral surgery due to its high water absorptivity, precision and patient acceptance. However, its application is limited by the lack of a contact-free feedback system which would enable safe laser guidance. In this work, a potential new, robust feedback modality based on speckle-analysis is presented which detects the acoustic signals produced during laser surgery. Oral soft- and hard tissue samples are investigated ex-vivo for its differentiation capability using the speckle modality. This technique might help to broaden the clinical application of Er: YAG lasers.

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