The term 'Part of a Tooth' can be broken down into four distinct parts: ROOT, DENTINE, CROWN, and PULP. The ROOT is the part of the tooth that is embedded in the jawbone and is typically four letters long. DENTINE is the layer of tissue that covers the ROOT and is seven letters long. The CROWN is the visible part of the tooth above the gum line and is five letters long. Finally, the PULP is the innermost layer of the tooth and is four letters long. All of these parts work together to form a healthy tooth.