Figure 3.

35Cl MAS-NMR spectrum of the demineralized HA powder treated with SDF and immersed in the remineralization solution for 24 h. The peak at 0 ppm is the reference peak for NaCl. The peak at 36.5 ppm indicates the presence of AgCl.

35Cl MAS-NMR spectrum of the demineralized HA powder treated with SDF and immersed in the remineralization solution for 24 h. The peak at 0 ppm is the reference peak for NaCl. The peak at 36.5 ppm indicates the presence of AgCl.