title: In silico comparison of the reproducibility of full-arch implant provisional restorations to final restoration between a 3D Scan/CAD/CAM technique and the conventional method.
abstract: OBJECTIVE
  The aim of this article was to investigate the accuracy in the reproducibility of full-arch implant provisional restorations to final restorations between a 3D Scan/CAD/CAM technique and the conventional method.
  
  
  METHODS
  We fabricated two final restorations for rehabilitation of maxillary and mandibular complete edentulous area and performed a computer-based comparative analysis of the accuracy in the reproducibility of the provisional restoration to final restoration between a 3D scanning and CAD/CAM (Scan/CAD/CAM) technique and the conventional silicone-mold transfer technique. Final restorations fabricated either by the conventional or Scan/CAD/CAM method were successfully installed in the patient. The total concave/convex volume discrepancy observed with the Scan/CAD/CAM technique was 503.50mm(3) and 338.15 mm(3) for maxillary and mandibular implant-supported prostheses (ISPs), respectively. On the other hand, total concave/convex volume discrepancy observed with the conventional method was markedly high (1106.84 mm(3) and 771.23 mm(3) for maxillary and mandibular ISPs, respectively).
  
  
  CONCLUSIONS
  The results of the present report suggest that Scan/CAD/CAM method enables a more precise and accurate transfer of provisional restorations to final restorations compared to the conventional method.
authors.affiliation: Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Mino
authors.affiliation: Dental Laboratories, Hospital Medical Technology Part, Okayama University Hospital, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Maekawa
authors.affiliation: Dental Laboratories, Hospital Medical Technology Part, Okayama University Hospital, Japan.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Ueda
authors.affiliation: Wada Precision Dental Laboratories, Japan.
authors.forename: Shizuo
authors.initials: S
authors.lastname: Higuchi
authors.affiliation: Dental Laboratories, Hospital Medical Technology Part, Okayama University Hospital, Japan.
authors.forename: Junichi
authors.initials: J
authors.lastname: Sejima
authors.affiliation: Dental Laboratories, Hospital Medical Technology Part, Okayama University Hospital, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Takeuchi
authors.affiliation: Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan.
authors.forename: Emilio Satoshi
authors.initials: ES
authors.lastname: Hara
authors.affiliation: Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan.
authors.forename: Aya
authors.initials: A
authors.lastname: Kimura-Ono
authors.affiliation: Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Sonoyama
authors.affiliation: Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Japan. Electronic address: kuboki@md.okayama-u.ac.jp.
authors.forename: Takuo
authors.initials: T
authors.lastname: Kuboki
mesh_terms: D000368:Aged; D017076:Computer-Aided Design; D003757:Dental Implantation / Q000379:methods*; D015921:Dental Implants; D017267:Dental Prosthesis Design / Q000379:methods*; D019094:Dental Prosthesis, Implant-Supported; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D009066:Mouth, Edentulous / Q000534:rehabilitation*; D015203:Reproducibility of Results
chemical_list: D015921:Dental Implants
keywords: Accurate transfer; Implant final restoration; In silico analysis; Provisional restoration; Scan/CAD/CAM technique