Uvođenje digitalnih tehnologija u razvoj dentalne protetike

master's thesis

• Title (english): Implementation of digital technologies in the development of dental prosthetics
• Author: Hrvoje Josić
• Mentor: Stanko Škec (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2019-12-06, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Stomatološka protetika je grana stomatologije koja podrazumijeva zamjenu prirodnog zuba
umjetnim. Tradicionalni postupci izrade stomatoloških protetskih radova zahtijevaju puno
potrošnog materijala i ručnog rada. Cilj digitalizacije procesa je olakšati i ubrzati proces
izrade protetskog rada, te smanjiti upotrebu potrošnog materijala. Tradicionalni procesi se
digitaliziraju uvođenjem CAD-CAM sustava u proces izrade protetskog rada. Digitalni proces
izrade protetskog rada započinjem izradom digitalnog otiska zubi pomoću 3D skenera. Nakon
što se dobije digitalni otisak zubi na temelju tih podataka modelira se geometrija protetskog
rada pomoću dentalnih CAD programa. Ovi programi su namijenjeni samo za modeliranje
dentalnih protetskih radova. Kada je protetski rad konstruiran, CAD model se obrađuje u
dentalnom CAM programu kako bi se mogao proizvesti na CNC glodalici. CAM program
izrađuje G-kod na temelju ulaznih podataka (pozicija i orijentacija model, materijal, tip
protetskog rada, oblik sirovca) a razlikuje se od ostalih CAM programa jer sadrži unaprijed
definirane postavke za izradu dentalnih protetskih radova.
U sklopu tvrtke Neo Dens d.o.o. je provedena implementacija CAD-CAM sustava u cilju
digitalizacije izrade dentalnih protetskih radova, te će na nekoliko primjera biti prikazan
postupak izrade pojedinih protetskih radova (individualni upornjak, most i metalna
konstrukcija za keramiku na multi-unit upornjacima) i 3D printanog radnog modela.

Abstract (english)

Dental prosthetics is a branch of dentistry that involves replacing a natural tooth with an
artificial one. The traditional process of producing dental prosthesis requires a lot of
consumable materials and manual labor. The goal of digitalization of the process is to
facilitate and speed up the process of making dental prothesis and to reduce the use of
consumable materials. The digital process of manufacturing a dental prosthesis starts by
making a digital impression of the teeth with a 3D scanner. Once a digital dental impression is
obtained, the geometry of dental prosthesis is modeled based on this data by using dental
CAD programs. These programs are intended only for modeling dental prosthetics. When the
dental prosthesis is modeled, the CAD model is processed in the dental CAM program to be
produced on a CNC milling machine. The CAM program produces G-code based on input
data (position and orientation of the model, material that will be used, type of prosthesis, raw
material shape) and differs from other CAM programs in that it contains predefined settings
for manufacturing dental prosthetics.
The CAD-CAM system has been implemented to digitize the production of dental prosthetics
in company Neo Dens and a few examples of the manufacturing process of making individual
prosthetics will be presented (individual abutment, bridge and metal construction for
ceramics on multi-unit abutments) as well for the 3D printed working model.

• Keywords: stomatološka protetika; CAD-CAM; digitalizacija procesa
• Keywords (english): dental prosthetics; CAD-CAM; digital fabrication process
• Language: croatian
• URN:NBN: urn:nbn:hr:235:588802
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2021-11-28
• Created on: 2019-11-28 10:32:34