periodontal disorder (MONDO_0002635) is an inflammatory process of the gingival tissues and/or periodontal membrane of the teeth, resulting in an abnormally deep gingival sulcus, possibly producing periodontal pockets and loss of alveolar bone support. Also known as: disease of periodontium, disease of supporting structures of teeth, disease or disorder of periodontium, disorder of periodontium, periodontal disease, periodontium disease, periodontium disease or disorder, periodontium disorder.