Toothache is pain in the area of your jaw and face. It usually happens when the inside of a tooth becomes irritated and inflamed. In the middle of every tooth, there is space containing dental pulp. Dental pulp is a soft, spongy tissue containing sensitive nerves and blood vessels. The pulp cavity is surrounded by layers of hard tissue to protect it. The outermost layer is called enamel, and is harder than bone. Toothache occurs when the pulp inside your tooth gets inflamed (known as pulpitis). This is often caused by dental decay, which results from poor oral hygiene, or it is sometimes caused by infection.
