Can I start a new box of crest white strips premium?!
Question:
Can I start a new box of crest white strips premium?
I just finished a 10 day box of crest white strips premium, 5 days ago. My teeth are a little whiter but not white enough. Can I go ahead and use another box to get the brightness I want or will it hurt my teeth?
Answers:
Ask your dentist to be on the safe side.