I have some discoloration (grayness/clearness) on my teeth. Why is it there and what do I do about it?

Answer 1

It is likely there for one or more of several reasons:

What you are eating.
Not enough cleaning.
Genetic wear and tear.
Too much soda, coffee, or tea.
Smoking.

What to do? Unfortunately, all you can do is brush more carefully and often, avoid the foods and drinks that stain teeth, stop smoking if you smoke, or pay an arm and a leg for your dentist to fix it.