Originally Posted by Goblin

Something to check out as soon as possible. Seems young for this sort of problem but getting it checked now may prevent ongoing damage to the permanent teeth. Sound be noted that dogs have a much higher pain tolerance than we do. What would cripple us in terms of toothache may be shown as only a lack of appetite in a dog.

If it is a problem with periodontal disease (which I am not convinced it is) it can cause problems with the liver, kidney and the immune system.

This is one of the reasons we feed raw. It's not for everyone and does need research. Couple of useful threads are stickied. The following pictures show two 6 year old dogs, the first fed dry food and treats, the second raw. It should be noted I think that most vets would not allow a dog's teeth to get to the stage shown in the first picture.




Another possible option which I have heard people say they have had a lot of success with is a product called PlaqueOff. There is an earlier thread specifically about this here