title: [A computer aided design approach of all-ceramics abutment for maxilla central incisor].
abstract: OBJECTIVE
  To establish the computer aided design (CAD) software platform of individualized abutment for the maxilla central incisor.
  
  
  METHODS
  Three-dimentional data of the incisor was collected by scanning and geometric transformation. Data mainly included the occlusal part of the healing abutment, the location carinae of the bedpiece, the occlusal 1/3 part of the artificial gingiva's inner surface, and so on. The all-ceramic crown designed in advanced was "virtual cutback" to get the original data of the abutment's supragingival part. The abutment's in-gum part was designed to simulate the individual natural tooth root. The functions such as "data offset", "bi-rail sweep surface" and "loft surface" were used in the process of CAD.
  
  
  RESULTS
  The CAD route of the individualized all-ceramic abutment was set up. The functions and application methods were decided and the complete CAD process was realized.
  
  
  CONCLUSIONS
  The software platform was basically set up according to the requests of the dental clinic.
authors.affiliation: Department of Implant Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Yu-chun
authors.initials: YC
authors.lastname: Sun
authors.forename: Yi-jiao
authors.initials: YJ
authors.lastname: Zhao
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Jing-yun
authors.initials: JY
authors.lastname: Han
authors.forename: Ye
authors.initials: Y
authors.lastname: Lin
authors.forename: Pei-jun
authors.initials: PJ
authors.lastname: Lü
mesh_terms: D002516:Ceramics; D017076:Computer-Aided Design; D003442:Crowns; D015921:Dental Implants; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D006801:Humans; D007180:Incisor; D008437:Maxilla
chemical_list: D015921:Dental Implants; D003776:Dental Porcelain