Furcation invasions: correlating a classification system with therapeutic considerations. Part I. Examination, diagnosis, and classification.
D001862:Bone Resorption / Q000473:pathology; D006801:Humans; D010510:Periodontal Diseases / Q000145:classification* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D011859:Radiography; D014092:Tooth Root / Q000473:pathology*