Research has shown that people with diabetes are more likely to develop severe gum disease, causing more tooth loss than those without it. Gum disease has also led to difficulties in diabetics regulating their glucose levels. These co-existing conditions create a circular relationship in which the inability to control glucose levels provides an environment for the bacteria that cause gum disease (which thrive on sugars) to grow. Experts agree that controlling blood sugar levels decreases the risk of gum disease, as well as other complications from diabetes.