loss of epithelial attachment to the tooth, producing an increase in gingival sulcus depth beyond the normal 1-2 mm.
Found on http://www.encyclo.co.uk/local/20169
An abnormal extension of a gingival sulcus accompanied by the apical migration of the epithelial attachment and bone resorption. ... (12 Dec 1998) ... Found on http://www.encyclo.co.uk/local/20973