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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Dent Mater. 2009 May 21;25(10):1205–1212. doi: 10.1016/j.dental.2009.04.006

Fig. 3.

Fig. 3

Representative micro-Raman mapping spectra obtained from the NCCL dentin substrate. (a) Relevant peak assignments in the region of 800–1800 cm−1. (b) v1 of phosphate peak: the decrease in the peak width and peak shift to higher wavenumbers can be seen in superficial layers.