With pre-diabetes, your blood sugar is probably higher than normal levels. Pre-diabetes means you have an increased risk of getting type 2 diabetes and complications such as heart and kidney disease, eye problems, food and skin conditions, and gum disease or tooth decay. High glucose levels can cause fungal infections. In the mouth, these infections are called thrush and look like white patches on the tongue and mouth. High glucose levels can cause dry mouth and increase the risk of tooth decay and gum disease. If you have pre-diabetes, consider this as a warning sign to take control of your health. Get on a healthy diet and lose weight if needed. Exercise for 30 minutes most days, as this helps with blood sugar management. See your dentist regularly and let the dentist know that you want to prevent problems. Your dentist will give you a dental exam and identify areas of concern such as tooth decay and/or gum disease. Managing your dental health means you must be diligent with tooth brushing, flossing and noticing any tooth or gum changes that could mean a more serious problem. At the first sign of a suspected problem, call your dentist and seek an accurate diagnosis and treatment.