title: Single-tooth implant restorations in the esthetic zone with PureForm ceramic crowns: 3 case reports.
abstract: The anterior maxillary jaw is frequently called the "esthetic zone" because of its high visibility and influence on facial appearance. Implant placement and single-tooth restoration in this region can present some esthetic challenges for the clinician. The underlying titanium abutment, for example, can diminish porcelain translucency and result in a darkened prosthesis. Subsequent changes in soft-tissue margins can also result in the visibility of titanium at the gingival crevice. In recent years, all-ceramic restorations have gained popularity in response to increasing patient demands for improved esthetics. This article describes the clinical use of a new, tooth-shaped, ceramic coping system in the restoration of single teeth in the esthetic zones of 3 patients. Four tapered screw implants were placed in the locations of the central incisors (n = 3) and bicuspid (n = 1). Conventional ceramic protocols were used to fabricate all-ceramic crowns that were cemented onto small core abutments attached to the implants. All prostheses restored the biomechanical needs of the patients and achieved excellent esthetic results.
authors.affiliation: schirol@tin.it
authors.forename: Guido
authors.initials: G
authors.lastname: Schiroli
mesh_terms: D000328:Adult; D000537:Aluminum Oxide / Q000737:chemistry; D001641:Bicuspid / Q000293:injuries; D002516:Ceramics; D003442:Crowns; D000044:Dental Abutments; D019250:Dental Implants, Single-Tooth; D003764:Dental Materials / Q000737:chemistry; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D007180:Incisor / Q000293:injuries; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D014082:Tooth Fractures / Q000628:therapy; D015040:Zirconium / Q000737:chemistry
chemical_list: D003764:Dental Materials; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide