title: Relationship of crown margin placement to gingival inflammation.
mesh_terms: D000222:Adaptation, Physiological; D003442:Crowns / Q000592:standards*; D003737:Dental Cavity Preparation / Q000592:standards; D003773:Dental Plaque / Q000209:etiology; D005549:Foreign-Body Reaction; D005891:Gingivitis / Q000209:etiology*; D006047:Gold Alloys; D006801:Humans
chemical_list: D006047:Gold Alloys