I consulted my dentist about them...but I changed my mind after hearing how they are done. They remove some tooth structure, and adhere a thin layer on top. Sometimes, if they are not done correctly, they will make your teeth look 'fat'. Plus, you have to be extremely careful when eating, say, like apples! The cost was approx. $600.00/tooth. And you really should have at least 8 on top done. My teeth are fine, but I was concerned about some calcium deposits that can be seen when I smile (white spots on a few teeth). But the nearly $7,000.00 it would have cost made me opt for whitening instead. One of the hygienists in his office had them, and they looked too white to me...almost fake. But I imagine they work wonders for people with really bad teeth. I did have a look at his before and after book, and was quite impressed with the results. But then again, the before pictures were scary!