Figure 7: Sample 4 - MDH Tooth Powder iron oxide shape – cuboidal-shaped size - 2–4 μm calcium carbonate shape – irregular-shaped size - 15–20 μm
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Figure 7: Sample 4 - MDH Tooth Powder iron oxide shape – cuboidal-shaped size - 2–4 μm calcium carbonate shape – irregular-shaped size - 15–20 μm
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