title: Application of Ce-TZP/Al2O3nanocomposite to the framework of an implant-fixed complete dental prosthesis and a complete denture.
abstract: METHODS
  A 69-year-old Japanese male visited Nihon University Dental Hospital for refabrication of his mandibular implant-supported complete fixed prosthesis (ISCFPD) and maxillary complete denture, which had been fabricated 15 years previously. In this case, Ce-TZP/Al2O3nanocomposite (Ce-TZP/A) was applied to the framework of the mandibular ISCFPD and maxillary complete denture. Three years after deliver of the framework, no particularly notable biological or prosthetic complications were observed, and a high level of patient satisfaction had been achieved.
  
  
  CONCLUSIONS
  Conventional ISCFPD frameworks were fabricated by casting gold alloys; however, with the recent advancement of CAD/CAM technology, titanium (Ti) or yttria tetragonal zirconia polycrystal (Y-TZP) frameworks have become more common. In contrast, the main fabrication method for Ti or Co-Cr frameworks of removable dental prostheses has shifted from the conventional casting method to CAD/CAM fabrication. Ce-TZP/A, which was chosen as the framework material this time, shows higher strength and greater toughness than Y-TZP. However, since it has a low light-transmitting property and exhibits an opaque white color, the range of its application in fixed prostheses, particularly in the esthetic area, is limited.
  
  
  CONCLUSIONS
  We described a case in which Ce-TZP/A was applied to the frameworks of a mandibular ISCFPD and a maxillary complete denture. No particularly notable biological or prosthetic complications were observed in the mandibular ISCFPD or the maxillary complete denture, and a high level of patient satisfaction was achieved. Medium- and long-term observations with a greater number of cases are essential to obtain information concerning various phenomena related to this procedure.
authors.affiliation: Department of Fixed Prosthodontics, Nihon University School of Dentistry, Toyo, Japan. Electronic address: hagiwara.yoshiyuki@nihon-u.ac.jp.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Hagiwara
authors.affiliation: KN Dental Laboratory, Hitachi City, Japan. Electronic address: knd-knd@memoad.jp.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nakajima
mesh_terms: D000368:Aged; D000537:Aluminum Oxide; D002563:Cerium; D017076:Computer-Aided Design; D003764:Dental Materials; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods*; D003779:Denture Design / Q000379:methods*; D003824:Denture, Complete; D006801:Humans; D007575:Jaw, Edentulous / Q000523:psychology / Q000534:rehabilitation*; D008297:Male; D008334:Mandible; D008437:Maxilla; D053761:Nanocomposites; D017060:Patient Satisfaction; D015040:Zirconium
chemical_list: C475766:Ce-TZP-Al2O3; D003764:Dental Materials; D002563:Cerium; D015040:Zirconium; D000537:Aluminum Oxide
keywords: Ceria-stabilized zirconia/alumina nanocomposite; Complete denture framework; Computer-aided design/computer-aided manufacturing; Implant-supported complete fixed prostheses; Implant-supported complete fixed prostheses removable dental prosthesis; Removable dental prosthesis