Apex: The very bottom of the root of your tooth

Buccal: The tooth surface which is next to your cheeks. Usually only posterior teeth touch your cheeks, so people usually use the term "buccal" only when talking about your back teeth.

Cementum: A bony substance covering the root of a tooth.

Crown: The part of your tooth above your gum.

Cuspal: The chewing or tearing points of the cuspids, bicuspids, and molars.

Dentin: The calcium part of a tooth below the enamel containing the pulp chamber and root canals.

Enamel: A hard ceramic which covers the exposed part of your teeth.

Frenum: Small pieces of pink colored skin that attach your lips, cheeks and tongue to your mouth. Examples include the piece of skin under your tongue which sticks out when you pick up your tongue, and the piece of skin which sticks out when you pull out your lips.

Gingivae: Another name for your gums

Gums: The pink areas around your teeth

Pulp: The soft inner structure of a tooth, consisting of nerve and blood vessels

Pulp Chamber: The very inner part of your tooth containing nerve cells and blood vessels.

Pulp canal: Another name for the pulp chamber

Root: The part of your tooth in your gums