There are many causes of tooth tenderness, including eating cold or acidic food, wear and tear of the teeth, allergies, etc. Depending on the cause, different solutions are adopted and the duration is different, so there is no fastest solution. 1. Physiological factors: ingesting a large amount of acidic food or cold food in a short period of time, resulting in soreness and pain in the teeth, which can be relieved by drinking warm water and avoiding too acidic or too sweet food. 2. Pathological factors: including wear and tear of the teeth, dentin hypersensitivity and dental caries can cause tooth tenderness, which can be solved by restoring the teeth, desensitizing the teeth and other treatments. There may be other causes of tooth soreness, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.