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. 2023 Nov 17;13:20156. doi: 10.1038/s41598-023-47551-5

Figure 3.

Figure 3

Optical microscopy image of the femtosecond laser processed grooves in the dentin of a sliced of teeth using femtosecond UV (343 nm) irradiation: (a) top and (b) floor of the laser ablated grooves presenting charring; (c) charring observed with 75% of pulse overlap and (d) magnification of the groove’s floor. L-A.A. laser-ablated area.