title: New Design for Rapid Prototyping of Digital Master Casts for Multiple Dental Implant Restorations.
abstract: OBJECTIVE
  This study proposes the replacement of all the physical devices used in the manufacturing of conventional prostheses through the use of digital tools, such as 3D scanners, CAD design software, 3D implants files, rapid prototyping machines or reverse engineering software, in order to develop laboratory work models from which to finish coatings for dental prostheses. Different types of dental prosthetic structures are used, which were adjusted by a non-rotatory threaded fixing system.
  
  
  METHODS
  From a digital process, the relative positions of dental implants, soft tissue and adjacent teeth of edentulous or partially edentulous patients has been captured, and a maser working model which accurately replicates data relating to the patients oral cavity has been through treatment of three-dimensional digital data.
  
  
  RESULTS
  Compared with the conventional master cast, the results show a significant cost savings in attachments, as well as an increase in the quality of reproduction and accuracy of the master cast, with the consequent reduction in the number of patient consultation visits. The combination of software and hardware three-dimensional tools allows the optimization of the planning of dental implant-supported rehabilitations protocol, improving the predictability of clinical treatments and the production cost savings of master casts for restorations upon implants.
authors.affiliation: Department of Construction and Fabrication Engineering, National Distance Education University (UNED), Madrid, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Romero
authors.affiliation: Department of Mechanical Engineering, Technical School of Engineering-ICAI, Comillas University, Madrid, Spain.
authors.forename: Mariano
authors.initials: M
authors.lastname: Jiménez
authors.affiliation: Department of Construction and Fabrication Engineering, National Distance Education University (UNED), Madrid, Spain.
authors.forename: María Del Mar
authors.initials: Mdel M
authors.lastname: Espinosa
authors.affiliation: Department of Construction and Fabrication Engineering, National Distance Education University (UNED), Madrid, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Domínguez
mesh_terms: D015921:Dental Implants; D017267:Dental Prosthesis Design / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation / Q000379:methods*
chemical_list: D015921:Dental Implants