title: Zirconia Abutment Supporting All Ceramic Crowns in the Esthetic Zone: Interim Results of a Prospective Study.
abstract: OBJECTIVE
  This prospective study evaluated peri-implant tissues around all-ceramic crowns fabricated using CAD/CAM technology.
  
  
  METHODS
  Twenty-five patients received pre-fabricated zirconia implant abutments with CAD/CAM zirconia copings in the esthetic zone. Implants were evaluated at baseline, and at 3 and 6 months in function.
  
  
  RESULTS
  Radiographic analyzes showed stable bone crest around the implants. Esthetics were more favorable as time lapsed (p > 0.05). Bleeding Index was constant in all time intervals. Plaque index reduced from 3 to 6 months.
  
  
  CONCLUSIONS
  The all-ceramic CAD/CAM crowns were clinically, radiographically and esthetically stable during the study period.
authors.forename: Thais Camargo
authors.initials: TC
authors.lastname: Bittencourt
authors.forename: Cleide Gisele
authors.initials: CG
authors.lastname: Ribeiro
authors.forename: Karina Lopes
authors.initials: KL
authors.lastname: Devito
authors.forename: Cimara Fortes
authors.initials: CF
authors.lastname: Ferreira
authors.forename: David Richard
authors.initials: DR
authors.lastname: Cagna
authors.forename: Neuza Maria Souza
authors.initials: NM
authors.lastname: Picorelli
mesh_terms: D000328:Adult; D001031:Apatites / Q000737:chemistry; D002484:Cementation / Q000379:methods; D002516:Ceramics / Q000737:chemistry*; D017076:Computer-Aided Design; D003442:Crowns; D059605:Dental Implant-Abutment Design; D003764:Dental Materials / Q000737:chemistry*; D003774:Dental Plaque Index; D019094:Dental Prosthesis, Implant-Supported; D004955:Esthetics, Dental; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D049329:Nanostructures / Q000737:chemistry; D016348:Osseointegration / Q000502:physiology; D010512:Periodontal Index; D011446:Prospective Studies; D019279:Resin Cements / Q000737:chemistry; D016896:Treatment Outcome; D015040:Zirconium / Q000737:chemistry*
chemical_list: D001031:Apatites; D003764:Dental Materials; C483701:Rely X Unicem; D019279:Resin Cements; C023506:Glass ceramics; D015040:Zirconium; C025105:fluorapatite; C028541:zirconium oxide