title: [The influence of porcelain-fused-to-metal crown margin to the aesthetics of gingiva].
abstract: The gingival tissue of 76 anterior teeth which were hurt by margin of porcelain-fused-to-metal (PFM) crowns were analyzed and the reasons of the gingival hurt and the precaution methods were put forward. The unsuccessful PFM crowns were replaced with new crowns and 88.16% of them are better than before. As the result, the gingival margin health of anterior teeth is the important factor which keep the esthetics of teeth, and the right clinical process is crucial to maintain the natural aesthetics of gingival margin.
authors.affiliation: Dental Precaution Center, Zhongshan, Guangdong.
authors.forename: H
authors.initials: H
authors.lastname: Zhou
authors.forename: G
authors.initials: G
authors.lastname: Tan
mesh_terms: D000328:Adult; D003442:Crowns / Q000009:adverse effects*; D003776:Dental Porcelain; D004954:Esthetics; D005881:Gingiva / Q000473:pathology*; D006801:Humans; D014082:Tooth Fractures / Q000628:therapy
chemical_list: D003776:Dental Porcelain