Bad breath can get between you and your pet. Worse, however, is that bad breath in pets can be a more serious sign of periodontal disease. This is actually a very common problem among cats and dogs. Periodontal disease can be serious and lead to tooth loss, the destruction of tissues, and ultimately more serious problems involving the kidneys, lungs, heart or liver. It's believed that your pet's life can be extended by two to five years with good oral hygiene. Good oral hygiene involves frequent teeth cleaning and frequent checks by the vet. There are also great oral care products on the market today, including solutions that can be added to your pet's water.