Q. Hiya im 16 nearly 17 years old and i woke up this morning and one of my top teeth hurt when i toached it with my tounge or closed my mouth and put my teeth together. It also hurt when ate food or swished water round my mouth. Later on i realised it wasnt just one of my tteth but the whole left upper side of my teeth from the back to the canines. I brush my teeth twice a day but i have not been using mouthwash for about a month. I wear a retainer brace at night and have been doing so for about 2-3 years. The pain is a sort of tingling pain when i touch the teeth with tounge or teeth or swish water round my mouth or eat. I have used mouth wash but it hasnt seemed to help. I’m really scared i might lose my teeth, please can you tell me what i could do at home to help?