Wondering why your teeth are sensitive? There are several possible causes of sensitive teeth, including tooth decay, worn tooth enamel, exposed tooth roots, gum disease, and damaged teeth. Symptoms of sensitive teeth can include sharp pain when eating or drinking hot or cold foods, pain when brushing or flossing, and pain when eating sweet, acidic, or sticky foods. Although it is common, having sensitive teeth can be frustrating. If your teeth feel sensitive, or you are experiencing sudden tooth sensitivity, you might want to know what’s causing it. In this article, we will discuss what causes sensitive teeth, the symptoms, and the treatments available for sensitive teeth.