Sep 20, · Hyperdontia: This happens when you have too many teeth and they start growing out anywhere in the dental arches of your jaw. These teeth are called supernumerary teeth. You can’t treat this on your own. So, we advise you not try. Jan 02, · Overview. Teeth are made up of a combination of hard and soft tissue. You may not think of teeth as living, but healthy teeth are alive. When the nerves in the pulp of the tooth, which is the Author: Megan Lentz.