I have had mine on less than a year and 2 of them have cracked and one has fallen off. My dentist cemented it back on and in a couple of weeks it came off again. I paid $1000 per tooth and I like the looks but if they won't stay in it isn't worth it. The procedure itself was easy, although they did have to grind my teeth down so that it isn't reversible for me.
Cracked - Woodbridge, VA
I have had mine on less than a year and 2 of them...
From the dentist