title: The Ability of Dental Specialists to Distinguish Lateral Incisor Metal-Free From Porcelain-Fused-to-Metal Implant Supported Crowns.
abstract: The objective of this study was to evaluate the ability of dental specialists to distinguish lateral incisor metal-free from porcelain-fused-to-metal implant supported crowns in the anterior region. Five single-tooth implants in the maxillary lateral incisor region were restored with two types of implant-supported crowns (porcelain-fused-to-metal and metal-free). Photographs were presented to 20 evaluators. The evaluators had to answer whether the crown was: metal-free, porcelain-fused-to-metal or they could not tell the difference. The results showed that groups 1 (all participants), 3 (Restorative & Prosthodontic specialists), 4 (graduated 10 years) and 5 (graduated > 10 years) failed to respond correctly (P > 0.05) to which type of crown was presented to them. Group 2 (Periodontology & Implantology specialists) showed an accuracy rate of 35.6% (P = 0.009), in relation to metal-free crowns, 5.6 which is below the random index. The authors concluded that the evaluators from the 5 groups studied were unable to significantly distinguish which type of crown was used in the 10 presented situations.
authors.forename: Eduardo V
authors.initials: EV
authors.lastname: De Melo
authors.forename: Ana Elisa C
authors.initials: AE
authors.lastname: Kauling
authors.forename: Sérgio Fernando T
authors.initials: SF
authors.lastname: Freitas
authors.forename: Antônio C
authors.initials: AC
authors.lastname: Cardoso
authors.forename: Cimara Fortes
authors.initials: CF
authors.lastname: Ferreira
mesh_terms: D002858:Chromium Alloys / Q000737:chemistry; D003442:Crowns; D003657:Decision Making; D003757:Dental Implantation; D019250:Dental Implants, Single-Tooth; D003764:Dental Materials / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D003814:Dentistry, Operative; D003815:Dentists; D006801:Humans; D007180:Incisor; D008437:Maxilla; D016876:Metal Ceramic Alloys / Q000737:chemistry*; D010517:Periodontics; D023861:Photography, Dental; D011476:Prosthodontics; D013039:Specialties, Dental; D015040:Zirconium / Q000737:chemistry*
chemical_list: D002858:Chromium Alloys; D003764:Dental Materials; D016876:Metal Ceramic Alloys; D003776:Dental Porcelain; D015040:Zirconium; C028541:zirconium oxide