Dog gingivitis is an infection of the gums that causes redness and swelling. It is usually as a result of the accumulation of plaque wherein there’s a mixing of the bacteria found in the dog’s mouth with food particles left attached on its teeth after chewing. Plaques are very grainy and stick to teeth. With time, the accumulation of the plaque increases and finally it becomes tartar which will usually form on the gums’ line. If you want to learn more about dog gingivitis, then keep on reading to and learn how it’s treated.