We use essential storage for security and free scan limits. Optional cookies improve your experience. Learn more
A physical reference chip of known colour from a shade guide, held beside the teeth to compare. Tabs work well in a dentist’s controlled light and poorly in a phone photo, which is why digital colorimetry exists.
Reading the VITA shade guideOne photo gives you a whiteness score, a VITA shade match and a visible stain estimate — the vocabulary in this glossary, applied to your teeth.