Wash your hands with warm soapy water. In front of your bathroom mirror, you’ll want to examine the roof of your mouth, your lips, tongue and gums. Pull your top lip up and bottom lip down to see behind them. You may use a piece of gauze or a cotton pad to help you grip your tongue to check the sides and underside. Do your best to look at your gums, and use your fingers to feel the insides of your mouth. You’re looking and feeling for colour changes, lumps and bumps, unusual textures or tenderness. Let your dentist know if you have any sores that have not healed after two weeks.