Desna - part of the mucous membrane of the mouth, covering alveolar processes jaws.
Desna tightly fused with the periosteum of alveolar process and richly supplied with blood vessels and nerves. Part of the collagen fibers of the gums is attached to the neck of the tooth and to cement its root, forming a circular ligament of a tooth. Free gum forms interdental papillae. The narrow space between the teeth and disneym edge is called the gingival pocket. Cm. also Gingivitis.