Hi,
So have you tried feeding your dogs some bones occassionally to remove the accummulated tartar or plague?
If not, read my blog and have a go at it as it really works!
Here are slideshows of my recent photos of my 2 dogs having their teeth 'brushed' with bones :
Please click on "X" on the top right-hand corner of the screen if there are no photos displayed.
Have a good day!