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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. 4.

Fig. 4

Relative mineral/matrix ratios as a function of the distance from the most superficial layer of the specimen. (a) Micro-Raman image showing the v1 of phosphate to CH2 deformation peak area ratios and a ~10μm thick superficial layer with the highest values for the ratio. (b) A profile for v1 of phosphate to CH2 deformation peak area ratio as a function of position. (c) Micro-Raman image showing the v1 of carbonate to CH2 deformation peak area ratios. Lowest values for the ratio are in the superficial layers of the substrate. (d) A profile for v1 of carbonate to CH2 deformation peak area ratios across the imaged area.