5{e Dentist the other day, and they discovered two very white patches of skin where my wisdom teeth were removed. (They were removed about 15 years ago). The white patches are about the size of a pencil eraser on both sides of my lower jaw, and they look like dead skin, they aren't raised, or anything else. The Dentist said not to worry about them. He took a measurement and said if they grow he'll have a biopsy done. Has anyone here ever had a symptom like this, should I be worried at all?