Femtosecond laser dentistry for precise and efficient cavity preparation in teeth
Date
2022
Authors
Rapp, Ludovic
Madden, Steve
Brand, Julia
Walsh, Laurence J.
Spallek, Heiko
Zuaiter, Omar
Habeb, Alaa
Hirst, Timothy R.
Rode, Andrei
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Volume Title
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Optical Society of America
Abstract
High fluence focused femtosecond laser pulses were used to perform fast, high
precision and minimally damaging cavity cutting of teeth at room temperature without using any
irrigation or cooling system. The optimal ablation rates were established for both enamel and
dentin, and the surfaces were assessed with optical and scanning electron microscopy, Raman
spectroscopy and optical profilometry. No chemical change in the composition of enamel and
dentin was observed. We explored temperature variations inside the dental pulp during the
laser procedure and showed the maximum increase was 5.5°C, within the acceptable limit of
temperature increase during conventional dental treatments.
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Biomedical Optics Express
Type
Journal article
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Open Access
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