Severe gum disease can cause your gums to start pulling away from your teeth. You may also form pockets between your teeth and gums and develop infections, cavities and even begin to lose your teeth. Poor oral health can lead to heart disease, kidney disease and even stroke. Many people may be surprised to know that gum disease and oral health can be negatively affected by having diabetes. On the flip side, poor oral health can lead to poor glucose control and eventually diabetes. Essentially, understanding the link between diabetes and oral health can help a person maintain proper oral health. This is necessary in order to stay healthy and keep diabetes at bay or under control.