R-20 TEETH SHADE GUIDE
The R-20 is the recommended teeth shade guide for teeth whitening. The R20 teeth shade guide is the most accurate on the market today. The R-20 is professional quality and the most widely used shade guide by teeth whitening professionals and dentists.
The R-20 Shade Guide comes in 40 shades lightest to darkest and does not need to be rearranged to show the colors going from light to dark like the Vita shade guide which is for veneers not teeth whitening. The R-20 was designed to be used for before and after colour matching for teeth whitening.