Imagine if you never brushed your teeth or had them cleaned. Pretty frightening, right? As you can imagine, things would eventually start to go very, very bad inside your mouth: teeth would rot and decay, gums would become inflamed and infected. Bacteria from those rotting teeth would eventually travel into your bloodstream and could cause other serious health problems. And we haven’t even mentioned the daily, debilitating pain. Well, it’s the same scenario for your dog or cat.