My dog has some nasty breath, I checked her teeth they were fine..so I soaked a cotton ball in peroxide and started wiping her teeth and gums. I went from back to front. I changed the cotton balls often. It helped alot and my dog tolerated the wiping.
Next I went online to find Doggie Breathe products, since some of the odor can come from their stomachs..so I found
DDS Doggie Mints..they are a chewable mint, and I also found
DDS Dental wipes, that have a mint flavor..my dog loves when I wipe her teeth now. My last find was
Dingo Sticks, my dog does not like treats, unless it is a cookie, or cracker..nothing hard to clean tartar off her teeth...I ordered the Dingo Sticks, and she loves them..they also have breath control ingredients in them.
No more doggie breath in my house.

Janet