Virtual design and 3D manufacturing in dental applications
The study’s subject is a complex manufacturing process creating precise fit of fixed bridge prostheses. The materials and technologies used in our field are the sum of the most modern processing methods in the trade. The idea for the complex utilization possibility of both additive and subtractive technologies has emerged first at the University of Győr. Six years later, the ideal was realized as an optimized process in our laboratory. The role of virtual design has increased in dentistry; along with the penetration of implant prosthetics grew the qualitative requirements. The complex precision manufacturing process makes the required surface fitting possible for dual-phase implants.
Methods used in the process
Optical scanning, surface digitalization
The spatial coordinates of the model’s surface points are defined with a non-contact projected line 3D scanner. From the processed information, the spatial locations of the surface’s specific digitizable points can be determined.
Computer modeling and production planning
Product design is made in virtual environment using softwares developed for this express purpose. Manufacturing includes applied IT methods, procedures and services related to the operative phase of production execution.
Additive manufacturing with laser metal fusion (LMF) printer
LMF technology is the melting of the automatically layered metallic powder with the energy of a scanning laser beam. At each layer melting occurs at certain regions where needed, according to the cross-sectional area of the model at the given height.
At the 5-axis machining centers using special positioning clamping-desk, an automatic tool magazine is expected. The most important part of the follow-up work is fixing the 3D printed pre-product and locating the exact zero point.
 Roddy MacLeod, Daniel Michaeli, Volker Wedler (2012): Methods, Apparatuses, Computer Programs, and Systems for Creating a Custom Dental Prosthetic Using CAD/CAM Dentistry, United States Patenet Application Publication
 Volkan Arisan Dr., Zihni Cüneyt Karabuda Dr., Hakan Avsever Dr., Tayfun Özdemir Dr. (2012): Conventional Multi-Slice Computed Tomography (CT) and Cone-Beam CT (CBCT) for Computer-Assisted Implant Placement. Part I: Relationship of Radiographic Gray Density and Implant Stability, Clinical Implant Dentistry
 A. Dawood, B. Marti Marti, V. Sauret-Jackson & A. Darwood (2015): 3D printing in dentistry, British Dental Journal
 W. Stein, S. Hassfeld, J. Brief; I. Bertovic, R. Krempin, J. Mühling (1998): CT-based 3D-planning for dental implantology, Medicine Meets Virtual Reality
 Douglas Goldsmith, Marcus Abboud (2012):Computer-guided planning and placement of dental implants, Atlas of the oral and Maxillofacial Surgery Clinics, 53-79
 RH Schepers, GM Raghoebar, LU Lahoda, WJ Van der Meer, JL Roodenburg, A Vissink1, H Reintsema1, MJ Witjes (2012): Full 3-D digital planning of implant-supported bridges in secondary mandibular reconstruction with prefabricated fibula free flaps, Head Neck Oncol;4(2):44.
 Lucia Cevidanes, DDS, MS, PhD, Scott Tucker, DDS, MS, Martin Styner, PhD, Hyungmin Kim, MS, Jonas Chapuis, PhD, Mauricio Reyes, PhD, William Proffit, DDS, PhD, Timothy Turvey, DDS, and Michael Jaskolka, DDS (2010): Three-dimensional surgical simulation, Am J Orthod Dentofacial Orthop.: 361–371.
 Ben Vandenbroucke, Jean-Pierre Kruth (2006): Selective laser melting of biocompatible metals for rapid manufacturing of medical parts, Rapid Prototyping Journal Vol. 13 Issue: 4, pp.196-203
 Gianni Frisardi,Email author, Giacomo Chessa, Sandro Barone, Alessandro Paoli, Armando Razionale and Flavio Frisardi (2011): 14. Integration of 3D anatomical data obtained by CT imaging and 3D optical scanning for computer aided implant surgery, BMC Medical Imaging
 P. Koidisa, P. Patiasb, V. Tsioukasc (2006): 16. 3D Visualization of Dental Data for Virtual Treatment Planning, The Aristotle University of Thessaloniki
Bánki Közlemények is loyal to open access for academic work. All the original articles and review papers published in this journal are free to access immediately from the date of publication. We don’t charge any fees for any reader to download articles and reviews for their own scholarly use.
The Bánki Közlemények also operates under the Creative Commons Licence CC-BY-NC-ND. This allows for the reproduction of articles, free of charge, for non-commercial use only and with the appropriate citation information. All authors publishing with the Bánki Közlemények accept these as the terms of publication.