gingival groove

http://purl.obolibrary.org/obo/UBERON_0008805

The gingival sulcus is an area of potential space between a tooth and the surrounding gingival tissue and is lined by sulcular epithelium. The depth of the sulcus (Latin for groove) is bounded by two entities: apically by the gingival fibers of the connective tissue attachment and coronally by the free gingival margin. [ http://en.wikipedia.org/wiki/Gingival_sulcus ]

Synonyms: gingival sulcus, sulcus gingivalis, tooth-gingiva interface