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. 2017 Aug 29;7:9611. doi: 10.1038/s41598-017-10082-x

Figure 4.

Figure 4

Characteristics of the regenerated layer. (a) X-ray diffraction patterns of enamel, laser-treated enamel, and enamel remineralized by laser treatment and A-S for 3d. (b) Loading-unloading curves from nano-indentation tests at a maximum loading force of 1000 μN. (c,d) Detailed XPS spectrum of the C 1 s from the native enamel (c) and laser-treated enamel (d).