title: [Clinical evaluation on aesthetic effect of custom pressable metal ceramic abutment for dental implant restoration in anterior zone].
abstract: OBJECTIVE To evaluate the aesthetic effect of restorations with custom pressable metal ceramic abutments for defective soft and hard tissue in the maxillary anterior zone.
  
  
  METHODS
  Fifty-two patients with missing anterior teeth in the maxillar were selected, who had problems such as exposure of abutment metal, excessively large angle deviation, excessively long ceramic crown and missing gingival papilla, affecting the aesthetic effect of implant denture. Custom pressable metal ceramic abutments were made on the conventional castable metal abutment surface and restored with all-ceramic crowns to overcome the blackness at the implant neck.
  
  
  RESULTS
  Clinical evaluation for aesthetic effects 3 and 6 months after the restorations were placed. In 63 restorations of 52 patients, the blackness at the implant neck were eliminated and the aesthetic effect were ideal. The gingival was in healthy condition, showing no further gingival retreat or inflammation around the implant denture.
  
  
  CONCLUSIONS
  Custom pressable metal ceramic abutments can effectively improve the aesthetic appearance of the implant denture in maxillary anterior zone.
authors.affiliation: Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhong
authors.forename: Guoxing
authors.initials: G
authors.lastname: Zhou
authors.forename: Hanbing
authors.initials: H
authors.lastname: Guang
authors.forename: Wenyong
authors.initials: W
authors.lastname: Dai
authors.forename: Jing
authors.initials: J
authors.lastname: Qiu
authors.forename: Guoping
authors.initials: G
authors.lastname: Wang
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Zhu
authors.forename: Chunbo
authors.initials: C
authors.lastname: Tang
mesh_terms: D002516:Ceramics; D003442:Crowns; D000044:Dental Abutments; D015921:Dental Implants; D003776:Dental Porcelain; D004954:Esthetics; D006801:Humans; D008437:Maxilla; D008670:Metals
chemical_list: D015921:Dental Implants; D008670:Metals; D003776:Dental Porcelain