title: [Bone regeneration after flap surgery--a report of 4 cases].
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000502:physiology*; D001861:Bone Regeneration; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010510:Periodontal Diseases / Q000601:surgery*; D013524:Surgical Flaps