You put a lot of thought into keeping your dog healthy: quality food, routine checkups, plenty of fitness. But what about his teeth? Oral hygiene is an often-overlooked but important factor in your dog’s overall health. If he has a toothache or sore gums, he’s dealing with pain and stress that you may not even know about. Left untreated, bacteria introduced by the problem can enter the bloodstream and affect his heart, kidneys or liver. Veterinarians report that an estimated 85...