title: The development of the periodontal cleft. A clinical and histopathologic study.
mesh_terms: D000539:Alveolar Process / Q000473:pathology; D005881:Gingiva / Q000473:pathology; D005882:Gingival Diseases / Q000209:etiology / Q000473:pathology; D005891:Gingivitis / Q000150:complications; D006801:Humans; D010510:Periodontal Diseases / Q000209:etiology* / Q000473:pathology; D010513:Periodontal Ligament / Q000473:pathology; D010518:Periodontitis / Q000150:complications