Type 2 diabetes is a common condition that causes the level of glucose in the blood to become high. There are many complications associated with the condition, including heart disease, nerve damage, vision loss and kidney problems. There is also a clear relationship between diabetes and periodontal health. Patients with diabetes often have some oral complications, including periodontal diseases, mucosal infections, salivary gland dysfunction and neurological disorders. Indeed, periodontal disease is the most common oral disease among diabetes patients, with many studies finding a relationship between the two. It is this which a team of researchers based at the Department of Oral Hygiene at Kaohsiung Medical University in Taiwan is trying to address. Professor Hsiao-Ling Huang leads the team and is acutely aware of the potential her studies have. 'People with diabetes are at greater risk for incident and prevalent chronic periodontitis and have more severe chronic periodontitis than individuals without diabetes,' explains Huang. 'Some clinical research has indicated that the appropriate medical treatment of periodontitis positively affects blood-sugar control in diabetes patients.'