Journal of Dental Hygiene Science : eISSN 2233-7679

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Fig. 1. Coloring tests of natural pigments on bovine tongue and teeth. (A) Equal amounts (20 ml) of natural colorants were dropped on the surface of bovine tongue and left for 1 minute. After washing with saline, coloring was measured in equal pixel area using Image J program. The relative dye intensity before and after the experiment was plotted as a graph. *p<0.05, **p<0.001 versus before. Dental disclosing solution 2 Tone was used as control. (B) A natural pigment solution was smeared on the enamel surface and washed with saline. Images were captured with a digital camera. Relative dye intensity before and after the experiment was plotted as a graph. *p<0.05, **p<0.001 versus before.
J Dent Hyg Sci 2021;21:38-44 https://doi.org/10.17135/jdhs.2021.21.1.38
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