The gums are part of the oral mucosa that covers the alveolar processes of the jaws.
The gums are densely adherent with the periosteum of the alveolar processes and are richly supplied with vessels and nerves. Part of the gum collagen fibers is attached to the neck of the tooth and to the cement of its root, forming a circular ligament of the tooth. The free edge of the gum forms interdental nipples. The gap-like space between the tooth and the gingival margin is called the gingival pocket. See also Gingivitis.