Fig. 3From: An in vitro screening assay for dental stain cleaningImages of enamel surfaces before staining, after staining and post-stain removal with 5000 brush strokes. a Roughened enamel surface group; b Partially roughened enamel surface group; c Polished enamel surface group. Upper row (left to right): before stain; stain brushing with water; stain brushing with Colgate cavity Protection toothpaste; stain brushing with Crest Decay Prevention toothpaste; Lower row (left to right): stain brushing with Colgate MaxWhite toothpaste; stain brushing with Aquafresh Multi-Action Whitening toothpaste; stain brushing with Aquafresh Fresh & Minty toothpaste; stain brushing with Pearl Drops Daily Whitening Toothpolish toothpasteBack to article page