is it safe to use white strips?

on teeth that have crowns on them. i had three crowns put in three of my front teeth and so i am just wondering if it is safe to use white strips on the crowns. will it damage the crowns or wear them out faster if i use white strips on the crowns.

Joan2010-06-11T20:51:18Z

Yes they are safe.
Be careful though, my dad used them and didnt stick them all the way up to his gums, and theres was like a line of yellow where they didnt cover his teeth completely.