I think sometimes, dogs go through phases of bad breath. Some days, Sully's breath is fine and other days it's like UGH, DOG-BREATH!

Haha.
I tried those "Hartz" breath strips, you know, the kind like you could get for humans from listerine? Well, not only did Sully HATE them....they only "helped" his breath for like five minutes. So much for that! Don't EVEN bother!
There are bones for dental health, too. And in the dog-toothbrush section at petsmart they have a lot of different things. Good luck with Zoey! (She doesn't mind YOUR morning breath!

)