Observe: Turmeric has natural yellow pigments that could quickly stain the toothbrush bristles, but it doesn't completely stain teeth. Standard brushing with whitening toothpaste made up of fruit extracts bromelain and papain ends in major removal of yellow stains from teeth. (12) You might think about using other oils. https://www.youtube.com/watch?v=N6k2-d3oegg