Tehnologija 3D ispisa u izradi privremenih i trajnih nemetalnih protetskih radova

master's thesis

• Title (english): Technology of 3D printing for fabrication of temporary and permanent non-metal restorations
• Author: Anna Pilipović
• Mentor: Nikša Dulčić (mentor)
• Committee member: Nikša Dulčić (predsjednik povjerenstva)
• Committee member: Davor Illeš (član povjerenstva)
• Committee member: Lana Bergman (član povjerenstva)
• Granter: University of Zagreb; School of Dental Medicine; (Department of Removable Prosthodontics); Zagreb
• Defense date and country: 2020-09-03, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Dental Medicine

Abstract

Trodimenzionalni (3D) ispis, ili aditivna tehnologija, proces je stvaranja objekta slojevanjem
materijala. Postoji više vrsta tehnologije 3D ispisa koje na različit način stvaraju objekt i
kompatibilne su s različitim vrstama materijala. Za ispis nemetalnih radova najčešće korištene
metode su stereolitografija (SLA) i digitalna svjetlosna obrada (DLP). Materijal izbora kod tih
tehnologija su polimeri. U njih se ubrajaju termoplastični materijali te fotopolimerizirajuće
smole koji mijenjaju svoja svojstva djelovanjem UV zračenja. Reprezentativni primjer je
polimetil metakrilat (PMMA) koji ima široku primjenu u protetici. Manje zastupljen i još u fazi
istraživanja je i ispis keramike. Primjena 3D pisača u protetici, točnije u izradi nemetalnih
radova, je raznolika. Ispis modela sve više zamjenjuje sadru i klasično izlijevanje otiska. Mogu
se ispisati modeli cijele čeljusti ili samo određeni segment zubnog luka. Individualne žlice,
udlage i kirurške šablone za ugradnju implantata također se mogu ispisivati 3D pisačima. Sve
više koraka u izradi potpune proteze može se postići na digitalan način. Ona se može ispisati
od PMMA materijala, ali odvojeno baza i zubi, koji se zatim spajaju. Izrada baze djelomične
proteze ispisuje se od metala, no postoje i slučajevi ispisa baze od polimera ili ispis voštanih
kalupa za izlijevanje. Još jedna,sve zastupljenija primjena je ispis privremenih krunica. Ukupno
uzevši, vidljiv je brz i velik napredak 3D pisača u dentalnoj medicini. Potrebna su dodatna
istraživanja, osobito kliničke studije, za istraživanje preciznosti i isplativosti upotrebe 3D
pisača, no doba njihove primjene u dentalnoj medicini je definitivno stiglo.

Abstract (english)

Three-dimensional (3D) printing, or additive manufacturing, is a process of joining materials
to make objects from 3D model data, usually by layering. There are several types of 3D printing
technologies that are able to create an object in different ways and that are compatible with
different types of materials. The most widespread methods for printing non-metal restorations
are stereolithography (SLA) and digital light processing (DLP). Materials used with these
technologies are mainly polymers. These include thermoplastic materials and photopolymers
that change their properties in the presence of UV radiation. The most important material is
polymethyl methacrylate (PMMA), which is commonly used in prosthodontics. Printing of
ceramics is not so common yet, and needs to be further investigated. The application of 3D
printers in prosthodontics, of non-metal restorations in particular, is diverse. 3D printing of
dental casts is increasingly replacing traditional dental stone and impression making. It is
possible to print a dental cast of the whole jaw or only of a certain segment of dental arch.
Custom trays, occlusal splints and surgical guides for implant placement can also be printed
with 3D printers. The number of steps in a complete denture fabrication protocol that can be
performed in a digital way is increasing. Denture bases and teeth are printed from a PMMA
material separately and then joined together. The base of a partial denture can printed from a
metal, but it is also possible to print it from a polymer or to print wax moulds for casting.
Another prosthodontic application that is increasingly becoming a part of everyday dental
practice is temporary crown printing. On the whole, the development of 3D printers in dental
medicine is quick and advanced. Although additional research into the accuracy and costeffectiveness of 3D printers is still needed, especially clinical studies, the era of their application
in dental medicine has definitely arrived.

• Keywords: protetika; 3D ispis; polimeri
• Keywords (english): Prosthodontics; Printing; Three-Dimensional; Polymers
• Language: croatian
• URN:NBN: urn:nbn:hr:127:984694
• Study programme: Title: dental medicine; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: doktor/doktorica dentalne medicine (doktor/doktorica dentalne medicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-01-22 16:19:48