Journal of Dental Hygiene Science : eISSN 2233-7679

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Fig. 4. Coloring tests of natural pigment on 4 mandibular incisors. A natural pigment solution was smeared on the enamel surfaces and left for 10 seconds. After washing with drinkable water, images were captured, and 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. The values of the individual experiments are expressed as the mean±standard error of three independent experiments. *p<0.001 versus before.
J Dent Hyg Sci 2021;21:38-44
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