What are some common dog gum and teeth problems?

Dogs now have the same gum and teeth problems humans do. They will get cavities, gingivitis, etc. Many eat "human" food/treats and most eat commercial dog food which have fillers, dyes, chemicals, and sweeteners in them. This also explains why Diabetes is now so common in dogs.

A raw diet is best for dogs and cats, but if that is not possible, giving them "soup" bones and letting them chew on it to get out the marrow would be better than brushing their teeth.

My parents have a rescued greyhound from the track. The mush they feed them have their teeth rotting by the time they are 5. Her teeth look like they are ready to fall out and the stench that comes from her mouth is like 3 day old August road kill. I encouraged my mother to start giving her soup bones (raw of course) and though her teeth are still bad, her gums are looking much healthier and the stench is not as bad. At her age, nothing will make her all better, but the raw bones do help greatly.