With the Vita Tooth guide 3D-Master, all natural tooth shades can be determined accurately and systematically. The vita bleached shade guide enables the shades of bleached teeth to be determined accurately and systematically using the same principle as the Vita tooth guide. Features : - Determination of the tooth shade in 3 steps. - Unmistakable determination of the tooth shade. - Possibilities of comparison: Yes/No - Better/Worse decision. - Tooth shades precisely defined by science (miscible). - Can be learned.