The VITA Classical Shade Guide is the most commonly used dental shade guide, and it categorizes tooth colours into four primary groups, each representing a different hue.
A (Red-Brown): This is the group for reddish-brownish teeth, which are common in many people.
B (Red-Yellow): This group represents reddish-yellow hues.
C (Grey): These are shades with a greyish tone.
D (Red-Grey): This group combines red and grey tones.
The VITA Classic shade guide, from brightest to darkest (lightest to dullest) by value, is arranged as follows:
B1, A1, B2, D2, A2, C1, C2, D4, A3, D3, B3, A3.5, B4, C3, A4, C4
This rearranged order allows for easier value matching by first determining the brightest shade and progressing to the darkest, rather than the standard organization by hue (A, B, C, D groups).
Why this arrangement is useful:
Simplifies shade selection: Instead of sorting by hue (A, B, C, D), you can directly compare values.
Improves accuracy: This allows for a more precise match by focusing on lightness rather than color first.
Reduces eye fatigue: By presenting the shades in a logical value sequence, the process of shade matching becomes more efficient for the clinician