title: Aesthetic evolution of anterior maxillary crowns: a literature review.
abstract: The aesthetics of anterior maxillary restorations and health of the surrounding tissues are primary determinants of the successful outcome of a clinical procedure. Various restorative materials and application techniques have been developed to achieve optimal aesthetics. While early porcelain-fused-to-metal restorations exhibited metal margins, the development of shoulder porcelain margins in the 1980s resulted in a significant aesthetic improvement. Only in the 1990s, however, did all-porcelain restorations finally achieve the strength and complete range of optical characteristics exhibited by the natural dentition.
authors.affiliation: UCLA School of Dentistry, Los Angeles, California 90095-1668, USA. stefanp@dent.ucla.edu
authors.forename: S J
authors.initials: SJ
authors.lastname: Paul
authors.forename: N
authors.initials: N
authors.lastname: Pietrobon
mesh_terms: D003442:Crowns; D003757:Dental Implantation / Q000379:methods; D003776:Dental Porcelain / Q000627:therapeutic use; D003793:Dental Restoration, Permanent / Q000379:methods*; D004955:Esthetics, Dental; D006801:Humans; D007180:Incisor; D008437:Maxilla; D016876:Metal Ceramic Alloys / Q000627:therapeutic use
chemical_list: D016876:Metal Ceramic Alloys; D003776:Dental Porcelain