title: Tissue modification on thin friable attached gingiva around crown margins.
mesh_terms: D000328:Adult; D003238:Connective Tissue / Q000637:transplantation; D005882:Gingival Diseases / Q000601:surgery*; D005893:Gingivoplasty / Q000379:methods*; D006085:Graft Survival; D006801:Humans; D008297:Male; D013524:Surgical Flaps