title: Anterior discolored teeth restored with procera all-ceramic restorations: a clinical evaluation of the esthetic outcome based on the thickness of the core selected.
abstract: The most common esthetic challenge associated with endodontics is the discoloration of natural tooth structure. Also in fixed prosthesis, discolorations represent an esthetic limit, particularly in the case of all-ceramic restorations. In fact, the final esthetic result can be compromised by the grey radiated through the coping and soft tissue.
  
  
  OBJECTIVE
  The aim of the study was to evaluate the masking ability of Procera alumina restorations.
  
  
  METHODS
  Clinical evaluation was investigated by using tests of discolored teeth. Each abutment, classified with Natural Die Material (Ivoclar Vivadent), were manufactured three alumina copings with thickness of 0.4, 0.6, and 0.8 mm, respectively. Masking ability for each coping was evaluated in relation to the degree of discoloration. On the basis of the results obtained, seventeen discolored teeth, treated with Procera alumina restorations, were evaluated. Color match, porcelain surface, marginal discoloration, and marginal integrity were clinically examined following modified CDA/Ryge criteria.
  
  
  CONCLUSIONS
  The Procera AllCeram alumina system seems to be a reliable and excellent technology for the prosthetic treatment of moderate and serious discolored anterior teeth with an exceptionally natural look.
authors.affiliation: Studio Odontoiatrico Specialistico, Cattolica, Rimini, Italy. fabbrigiacomo@libero.it
authors.forename: Giacomo
authors.initials: G
authors.lastname: Fabbri
authors.forename: Roberto
authors.initials: R
authors.lastname: Mancini
authors.forename: Valentina
authors.initials: V
authors.lastname: Marinelli
authors.forename: Giorgio
authors.initials: G
authors.lastname: Ban
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D002484:Cementation / Q000379:methods; D003116:Color; D017076:Computer-Aided Design; D003442:Crowns; D003481:Cuspid / Q000473:pathology; D000044:Dental Abutments; D003738:Dental Cements / Q000737:chemistry; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D003830:Denture, Partial, Fixed; D004955:Esthetics, Dental; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000473:pathology; D011176:Post and Core Technique; D013499:Surface Properties; D014075:Tooth Discoloration / Q000534:rehabilitation*; D019231:Tooth Preparation, Prosthodontic / Q000379:methods; D016896:Treatment Outcome
chemical_list: C105314:AllCeram; D003738:Dental Cements; D003776:Dental Porcelain; D000537:Aluminum Oxide