20.500.12556/RUL-99574 Razvoj naprave za svetlobno polimerizacijo dentalnih kompozitnih materialov The development of device for the light-curing of dental composite materials Uvod: Razvita je bila laboratorijska naprava za svetlobno polimerizacijo dentalnih kompozitnih materialov na osnovi diodnih luči. Namen: Raziskali smo proces svetlobne polimerizacije dentalnih kompozitnih materialov, ki so bili polimerizirani z lastno razvito napravo. Rezultate smo primerjali z rezultati polimerizacije, opravljene na komercialno dostopni napravi (Solidilite V), ki deluje na osnovi halogenskih luči, in izpostavili prednosti razvite naprave na osnovi diodnih luči pred halogenskimi lučmi. Metode dela: Metoda teoretičnega dela je deskriptivna in obsega literaturo, ki jo diplomsko delo obravnava. Raziskovalni del temelji na analizi rezultatov eksperimentalno določene upogibne trdnosti kompozitnega materiala Ceramage. Praktični del obsega izdelavo polno kompozitne prevleke, ki je polimerizirana v lastno razviti napravi. Rezultati: Iz pridobljenih rezultatov je razvidno, da na mehanske lastnosti kompozita vpliva gostota energije svetlobnega snopa (jakost svetlobnega snopa × čas osvetlitve). Ugotovili smo, da srednji časi izpostavljenosti in jakosti svetlobnega snopa privedejo do višje eksperimentalno določene upogibne trdnosti kot svetlobno strjevanje z uporabo kratkih časov izpostavljenosti z visoko jakostjo svetlobnega snopa ali dolgimi časi izpostavljenosti in nizko jakostjo svetlobnega snopa. Razprava in sklep: Lastno razvita naprava omogoča uspešno svetlobno polimerizacijo dentalnih kompozitnih materialov na osnovi fotoiniciatorja kamforkinona z absorbcijskim maksimumom 465 nm. Uspešnost razvite naprave smo potrdili z rezultati eksperimentalno določene upogibne trdnosti kompozitnega materiala ter analizo njegove mikrostrukture. Introduction: A laboratory device for light curing dental composite materials based on diode lights was developed. Purpose: We researched the process of light polymerization of dental composite materials that were polymerized in the developed device. The results were compared with the results of polymerization performed on a commercially available device (Solidilite V), which operates based on halogen lights. We highlighted the advantages of the developed device based on diode lights compared to halogen lamps. Methods: The method of theoretical work is descriptive and covers the literature that this thesis deals with. The research part is based on the analysis of the results of the experimental determined flexural strength of the Ceramage composite material. The practical part consists of the production of a full composite crown, which is polymerized in the developed device. Results: From the obtained results, it is evident that the mechanical properties of the composite are influenced by the energy density of the light beam (power density x exposure duration). We found out that the mean time of exposure and the power density lead to higher experimentally determined flexural strength compared to light curing using short exposure times with high power density or long exposure times and low power density. Discussion and conclusion: The self-developed device enables successful light-curing polymerization of dental composite materials based on camphorquinone photoinitiator, with an absorption maximum of 465 nm. The successful performance of the developed device was confirmed by the results of the experimentally determined flexural strength of the composite material and the analysis of its microstructure. dentalni kompozitni materiali svetlobna polimerizacija diodne luči jakost svetlobnega snopa dental composite materials light curing diode lights energy density true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-02-03 07:15:39 2018-02-03 07:15:43 2022-08-24 16:59:30 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 81832 5385835 3127.pdf 3127.pdf 1 52624A62B2E56F5F4387CA8FFAD4CC09 45ecfc9d66752826fabff7524fb784db6b5bb4bbf8d09661c62ea30efc71dde6 99568a33-a1b4-11eb-a523-00155dcfd717 20.500.12556/rul/85b43eb3-0680-4325-b2db-650c9f5d088b https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=109089 Zdravstvena fakulteta 0 0 0