I recently just bought an oral spray that is supposed to fight against tarter. The brand is Petzlife-
Dog Dental Care, Pet Teeth Cleaning Products - PetzLife I have heard great things about it and hope so see results on my boys myself. I am having some trouble getting them use to the " Spray " effect of it. It seems to scare them. They also have a gel formula available that I am now thinking maybe would have been easier to use on them. Best of all, the ingredients are all natural. I spent about $25 on my bottle. A bit pricey, but if it works, its worth every penny! Along with using the oral spray I brush their teeth about every other night. If anyone else has used Petzlife, I would love to hear if anyone has seen results with the product!