title: The 7/8 crown: a lost art.
abstract: Historically, the longevity of teeth restored with gold inlays, onlays, crowns, and partial veneer restorations is excellent. However, in-office computer-aided design and computer-aided manufacturing restorations, laboratory-constructed all-ceramic bonded restorations, and conventional ceramo-metal restorations are more common. The high price of gold, the difficulty of the preparation, and the fact that most dental schools are de-emphasizing the teaching of partial veneer restorations has created a situation whereby the 7/8 crown is rarely viewed as the treatment of choice. Time and experience will determine if the new ceramic materials, along with the all-important bonding agents, can achieve the success of a well-done, all-gold restoration.
authors.affiliation: Department of Oral Rehabilitation, College of Dental Medicine, Medical University of South Carolina, Charleston, SC 29425, USA. mcgillt@musc.edu
authors.forename: S T
authors.initials: ST
authors.lastname: McGill
authors.forename: J R
authors.initials: JR
authors.lastname: Holmes
mesh_terms: D000328:Adult; D000075202:Contraindications; D003387:Cracked Tooth Syndrome / Q000628:therapy; D003442:Crowns; D003743:Dental Enamel / Q000293:injuries / Q000473:pathology; D017267:Dental Prosthesis Design; D003801:Dental Veneers; D004955:Esthetics, Dental; D005260:Female; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D008963:Molar / Q000293:injuries; D019228:Tooth Crown / Q000293:injuries / Q000473:pathology; D019231:Tooth Preparation, Prosthodontic / Q000295:instrumentation / Q000379:methods
chemical_list: D006047:Gold Alloys