One of the more common shade guides divides tooth colour into four basic shade ranges:
![Tooth Shades](/content/dam/cp-sites/oral-care/oral-care-center/global/exported/oc/content/articles/2010/11/CP/Images/tooth-shades.jpg)
- A (reddish brown)
- B (reddish yellow)
- C (gray)
- D (reddish gray)
Within each range are different levels of darkness — which results in a chart detailed enough for almost everyone to find their exact tooth colour on the guide.
To use such a guide, simply match your current tooth colour to the corresponding colour on the chart. This gives you a starting point as you determine how much whiter you'd like your teeth to be.
How white should your teeth become? That depends.