Dentist Questions Dentist

Why do I have grey lines on my teeth?

I am a 33 year old female. I have grey lines on my teeth. What could be the cause?

3 Answers

They should be evaluated by a dentist.
Hello,

It sounds like you are referring to what dentists call craze lines. Do these lines run from your gums to the edge of the tooth? Did they just appear one day? If so, it certainly sounds like craze lines. These are micro fractures in the enamel that are very common. They are so small that most people do not know they are there until they pick up a little bit of staining. This makes them visible in the right line. That being said, a little bit of whitening usually takes care of the staining if your cleaning does not.
Hope this helps.

My best to you!

William F. Scott IV, DMD
If you were placed on tetracycline therapy as a child, this might be the cause. You can whiten your teeth. If you go out in the sun, sun exposure can make the lines darker.