TY  - JOUR
AU  - Milinković, Iva
AU  - Rudolf, Rebeka
AU  - Raić, Karlo T.
AU  - Aleksić, Zoran
AU  - Lazić, Vojkan
AU  - Todorović, Aleksandar
AU  - Stamenković, Dragoslav
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5667
AB  - The shape and chemical composition, as well as the macro- and microtopography, of an implant surface have been studied widely as the major factors that positively influence implant osseointegration. Titanium and titanium alloys have been used extensively over the past 20 years as biomedical materials in orthopedic and dental surgery because of their good mechanical properties, corrosion resistance, no cell toxicity, and very poor inflammatory response in pen-implant tissue, which confirms their high biocompatibility. Their favorable biological performance is attributed to a thin native oxide film that forms spontaneously on the titanium surface. It is well established that surface roughness plays an important role in implant fixation. Accordingly, some authors have indicated the existence of an optimal range of surface roughness. The titanium surface can be either chemically or physically modified, or both, in order to improve biomaterial tissue integration. Different treatments are used to modify the titanium surface. Hydroxyapatite coatings, preceded or not by acid etching, are used to create a rough, potentially bioactive surface. Oxide blasting treatments, either with or without chemical etching, are used to develop rough surfaces. Thick oxide films obtained by anodic or thermal oxidation have been used to accelerate the osseointegration process. The ideal microtopography of the surface is still unknown, however, because it is very difficult to associate surface properties with clinical results. As more accurate knowledge is required, several Ti surfaces have been analyzed and the endosseous implant surface modified on the micro level has been thoroughly studied. Additionally, the production of gold (Au) nanoparticles to be added to the micron-scale modified surface has been performed. In this respect, an appropriate overview of our results is given.
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Aspects of titanium-implant surface modification at the micro and nano levels
EP  - 256
IS  - 3
SP  - 251
VL  - 46
UR  - https://hdl.handle.net/21.15107/rcub_smile_1680
ER  - 

@article{
author = "Milinković, Iva and Rudolf, Rebeka and Raić, Karlo T. and Aleksić, Zoran and Lazić, Vojkan and Todorović, Aleksandar and Stamenković, Dragoslav",
year = "2012",
abstract = "The shape and chemical composition, as well as the macro- and microtopography, of an implant surface have been studied widely as the major factors that positively influence implant osseointegration. Titanium and titanium alloys have been used extensively over the past 20 years as biomedical materials in orthopedic and dental surgery because of their good mechanical properties, corrosion resistance, no cell toxicity, and very poor inflammatory response in pen-implant tissue, which confirms their high biocompatibility. Their favorable biological performance is attributed to a thin native oxide film that forms spontaneously on the titanium surface. It is well established that surface roughness plays an important role in implant fixation. Accordingly, some authors have indicated the existence of an optimal range of surface roughness. The titanium surface can be either chemically or physically modified, or both, in order to improve biomaterial tissue integration. Different treatments are used to modify the titanium surface. Hydroxyapatite coatings, preceded or not by acid etching, are used to create a rough, potentially bioactive surface. Oxide blasting treatments, either with or without chemical etching, are used to develop rough surfaces. Thick oxide films obtained by anodic or thermal oxidation have been used to accelerate the osseointegration process. The ideal microtopography of the surface is still unknown, however, because it is very difficult to associate surface properties with clinical results. As more accurate knowledge is required, several Ti surfaces have been analyzed and the endosseous implant surface modified on the micro level has been thoroughly studied. Additionally, the production of gold (Au) nanoparticles to be added to the micron-scale modified surface has been performed. In this respect, an appropriate overview of our results is given.",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Aspects of titanium-implant surface modification at the micro and nano levels",
pages = "256-251",
number = "3",
volume = "46",
url = "https://hdl.handle.net/21.15107/rcub_smile_1680"
}

Milinković, I., Rudolf, R., Raić, K. T., Aleksić, Z., Lazić, V., Todorović, A.,& Stamenković, D.. (2012). Aspects of titanium-implant surface modification at the micro and nano levels. in Materiali in Tehnologije
Institute of Metals and Technology., 46(3), 251-256.
https://hdl.handle.net/21.15107/rcub_smile_1680

Milinković I, Rudolf R, Raić KT, Aleksić Z, Lazić V, Todorović A, Stamenković D. Aspects of titanium-implant surface modification at the micro and nano levels. in Materiali in Tehnologije. 2012;46(3):251-256.
https://hdl.handle.net/21.15107/rcub_smile_1680 .

Milinković, Iva, Rudolf, Rebeka, Raić, Karlo T., Aleksić, Zoran, Lazić, Vojkan, Todorović, Aleksandar, Stamenković, Dragoslav, "Aspects of titanium-implant surface modification at the micro and nano levels" in Materiali in Tehnologije, 46, no. 3 (2012):251-256,
https://hdl.handle.net/21.15107/rcub_smile_1680 .

TY  - JOUR
AU  - Raić, Karlo T.
AU  - Rudolf, Rebeka
AU  - Todorović, Aleksandar
AU  - Stamenković, Dragoslav
AU  - Anžel, Ivan
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5603
AB  - Metal-ceramic fusing has been the essential step in obtaining materials that benefit from both ceramic and metal constituents. i e where the combined properties of metal and ceramic layers are desirable When considering fusing methods. soldering and active metal brazing are the most effective These processes involve braze melting and flowing between the two pieces of material In the first part the phenomena occurring on the boundary between the ceramics and the active filler metal during the metal-ceramics joining are discussed Three interconnected sub-processes are considered (1) wetting of the ceramic surface. (2) chemical reactions at the Interlace and (3) diffusion with a moving interface Then, the appearances at the grain boundary grooves of the ceramic surface are presented as phenomena on the catalytic surface In the second pan, examples from dental practice and jewellery manufacturing are used for comparative analysis Finally we discuss the composition and properties of the soldering and brazing alloys used for dental practice and jewellery manufacturing
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing
EP  - 66
IS  - 2
SP  - 59
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_smile_1534
ER  - 

@article{
author = "Raić, Karlo T. and Rudolf, Rebeka and Todorović, Aleksandar and Stamenković, Dragoslav and Anžel, Ivan",
year = "2010",
abstract = "Metal-ceramic fusing has been the essential step in obtaining materials that benefit from both ceramic and metal constituents. i e where the combined properties of metal and ceramic layers are desirable When considering fusing methods. soldering and active metal brazing are the most effective These processes involve braze melting and flowing between the two pieces of material In the first part the phenomena occurring on the boundary between the ceramics and the active filler metal during the metal-ceramics joining are discussed Three interconnected sub-processes are considered (1) wetting of the ceramic surface. (2) chemical reactions at the Interlace and (3) diffusion with a moving interface Then, the appearances at the grain boundary grooves of the ceramic surface are presented as phenomena on the catalytic surface In the second pan, examples from dental practice and jewellery manufacturing are used for comparative analysis Finally we discuss the composition and properties of the soldering and brazing alloys used for dental practice and jewellery manufacturing",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing",
pages = "66-59",
number = "2",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_smile_1534"
}

Raić, K. T., Rudolf, R., Todorović, A., Stamenković, D.,& Anžel, I.. (2010). Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing. in Materiali in Tehnologije
Institute of Metals and Technology., 44(2), 59-66.
https://hdl.handle.net/21.15107/rcub_smile_1534

Raić KT, Rudolf R, Todorović A, Stamenković D, Anžel I. Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing. in Materiali in Tehnologije. 2010;44(2):59-66.
https://hdl.handle.net/21.15107/rcub_smile_1534 .

Raić, Karlo T., Rudolf, Rebeka, Todorović, Aleksandar, Stamenković, Dragoslav, Anžel, Ivan, "Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing" in Materiali in Tehnologije, 44, no. 2 (2010):59-66,
https://hdl.handle.net/21.15107/rcub_smile_1534 .

TY  - JOUR
AU  - Raić, Karlo T.
AU  - Rudolf, Rebeka
AU  - Kosec, Borut
AU  - Anžel, Ivan
AU  - Lazić, Vojkan
AU  - Todorović, Aleksandar
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5605
AB  - This paper describes the development of novel, reactive Al-Au nano-multilayered foils, their possible application in different fields and a discussion of the nano-foils' suitability for dental and jewellery applications. Moreover, this study includes the rapid joining of similar and dissimilar materials, by placing multilayer nano-foils and two layers of solder or braze. The foils precisely control the instantaneous release of heat energy for the joining and act as a controllable local heat source. The reactive foils' thickness is in the range 10 nm to less than 100 nm and they contain many nanoscale layers that alternate between materials with high mixing heats, such as Al and Au. The foil between the two solder/braze layers melts the solder/braze with the heat generated by the reaction and bonds the components. The use of reactive foils eliminates the need for a furnace and dramatically increases the soldering/brazing heating rate of the components being bonded. Thus, ceramics and metals can be fused over required areas without the thermal stresses that are encountered in furnace soldering or brazing. In addition, a completely new plasma technology is proposed for the manufacturing of nano-foils and the first results of the preliminary experimental testing are presented.
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing
EP  - 9
IS  - 1
SP  - 3
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_smile_1560
ER  - 

@article{
author = "Raić, Karlo T. and Rudolf, Rebeka and Kosec, Borut and Anžel, Ivan and Lazić, Vojkan and Todorović, Aleksandar",
year = "2010",
abstract = "This paper describes the development of novel, reactive Al-Au nano-multilayered foils, their possible application in different fields and a discussion of the nano-foils' suitability for dental and jewellery applications. Moreover, this study includes the rapid joining of similar and dissimilar materials, by placing multilayer nano-foils and two layers of solder or braze. The foils precisely control the instantaneous release of heat energy for the joining and act as a controllable local heat source. The reactive foils' thickness is in the range 10 nm to less than 100 nm and they contain many nanoscale layers that alternate between materials with high mixing heats, such as Al and Au. The foil between the two solder/braze layers melts the solder/braze with the heat generated by the reaction and bonds the components. The use of reactive foils eliminates the need for a furnace and dramatically increases the soldering/brazing heating rate of the components being bonded. Thus, ceramics and metals can be fused over required areas without the thermal stresses that are encountered in furnace soldering or brazing. In addition, a completely new plasma technology is proposed for the manufacturing of nano-foils and the first results of the preliminary experimental testing are presented.",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing",
pages = "9-3",
number = "1",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_smile_1560"
}

Raić, K. T., Rudolf, R., Kosec, B., Anžel, I., Lazić, V.,& Todorović, A.. (2010). Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing. in Materiali in Tehnologije
Institute of Metals and Technology., 43(1), 3-9.
https://hdl.handle.net/21.15107/rcub_smile_1560

Raić KT, Rudolf R, Kosec B, Anžel I, Lazić V, Todorović A. Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing. in Materiali in Tehnologije. 2010;43(1):3-9.
https://hdl.handle.net/21.15107/rcub_smile_1560 .

Raić, Karlo T., Rudolf, Rebeka, Kosec, Borut, Anžel, Ivan, Lazić, Vojkan, Todorović, Aleksandar, "Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing" in Materiali in Tehnologije, 43, no. 1 (2010):3-9,
https://hdl.handle.net/21.15107/rcub_smile_1560 .

TY  - JOUR
AU  - Trifković, Branka
AU  - Todorović, Aleksandar
AU  - Lazić, Vojkan
AU  - Draganjac, Miroslav
AU  - Mirković, Nemanja
AU  - Jokić, Bojan
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5632
AB  - Background/Aim. One of the results of many years of Cerec® 3D CAD/CAM system technological development is implementation of one intraoral and two extraoral optical scanning methods which, depending on the current indications, are applied in making fixed restorations. The aim of this study was to determine the degree of precision of optical scanning methods by the use of the Cerec®3D CAD/CAM system in the process of making ceramic inlays. Methods. The study was conducted in three experimental groups of inlays prepared using the procedure of three methods of scanning Cerec ®3D system. Ceramic inlays made by conventional methodology were the control group. The accuracy of optical scanning methods of the Cerec®3D system computer aided designcomputer aided manufacturing (CAD/CAM) was indirectly examined by measuring a marginal gap size between inlays and demarcation preparation by scanning electron microscope (SEM). Results. The results of the study showed a difference in the accuracy of the existing methods of scanning dental CAD/CAM systems. The highest level of accuracy was achieved by the extraoral optical superficial scanning technique. The value of marginal gap size inlays made with the technique of extraoral optical superficial scanning was 32.97 ± 13.17 μ. Techniques of intraoral optical superficial and extraoral point laser scanning showed a lower level of accuracy (40.29 ± 21.46 μ for inlays of intraoral optical superficial scanning and 99.67 ± 37.25 μ for inlays of extraoral point laser scanning). Conclusion. Optical scanning methods in dental CAM/CAM technologies are precise methods of digitizing the spatial models; application of extraoral optical scanning methods provides the hightest precision.
AB  - Uvod/Cilj. Jedan od rezultata dugogodišnjeg tehnološkog usavršavanja Cerec®3D sistema jeste implementacija jednog intraoralnog i dva ekstraoralna metoda optičkog skeniranja koji se, u zavisnosti od postojeće indikacije, primenjuju u izradi fiksnih nadoknada. Cilj rada bio je da se utvrdi stepen preciznosti optičkih metoda skeniranja Cerec®3D sistema u postupku izrade keramičkih inleja. Metode. Ispitivanje je sprovedeno u okviru tri eksperimentalne grupe inleja u čijoj izradi su primenjena tri postupka skeniranja Cerec®3D sistema. Keramički inleji izrađeni konvencionalnom metodologijom predstavljali su kontrolnu grupu. Preciznost optičkih metoda skeniranja Cerec®3D sistema ispitivana je indirektno, merenjem veličine rubnog zaptivanja između inleja i demarkacije preparacije pomoću skenirajućeg elektronskog mikroskopa (SEM). Rezultati. Istraživanjem je ustanovljeno da postoji razlika u preciznosti postojećih metoda skeniranja stomatoloških Computer aided design-computer aided manufacturing (CAD/CAM) tehnologija. Najviši stepen preciznosti pokazala je tehnika optičkog ekstraoralnog površinskog skeniranja. Vrednost rubnog zaptivanja inleja izrađenih primenom ove tehnike iznosila je 32,97 ± 13,17 μ. Tehnike intraoralnog optičkog površinskog i ekstraoralnog tačkastog skeniranja pokazuju niži nivo preciznosti (40,29 ± 21,46 μ za inleje intraoralnog optičkog površinskog i 99,67 ± 37,25 μ za inleje ekstraoralnog tačkastog skeniranja). Zaključak. Optičke metode skeniranja u stomatološkim CAD/CAM tehnologijama predstavljaju precizne metode prostorne digitalizacije modela; pri tom, najveću preciznost pruža primena ekstraoralnih optičkih metoda skeniranja.
PB  - Vojnomedicinska akademija - Institut za naučne informacije, Beograd
T2  - Vojnosanitetski pregled
T1  - Accuracy of optical scanning methods of the Cerec®3D system in the process of making ceramic inlays
T1  - Preciznost optičkih metoda skeniranja Cerec®3D sistema u postupku izrade keramičkih inleja
EP  - 818
IS  - 10
SP  - 812
VL  - 67
DO  - 10.2298/VSP1010812T
ER  - 

@article{
author = "Trifković, Branka and Todorović, Aleksandar and Lazić, Vojkan and Draganjac, Miroslav and Mirković, Nemanja and Jokić, Bojan",
year = "2010",
abstract = "Background/Aim. One of the results of many years of Cerec® 3D CAD/CAM system technological development is implementation of one intraoral and two extraoral optical scanning methods which, depending on the current indications, are applied in making fixed restorations. The aim of this study was to determine the degree of precision of optical scanning methods by the use of the Cerec®3D CAD/CAM system in the process of making ceramic inlays. Methods. The study was conducted in three experimental groups of inlays prepared using the procedure of three methods of scanning Cerec ®3D system. Ceramic inlays made by conventional methodology were the control group. The accuracy of optical scanning methods of the Cerec®3D system computer aided designcomputer aided manufacturing (CAD/CAM) was indirectly examined by measuring a marginal gap size between inlays and demarcation preparation by scanning electron microscope (SEM). Results. The results of the study showed a difference in the accuracy of the existing methods of scanning dental CAD/CAM systems. The highest level of accuracy was achieved by the extraoral optical superficial scanning technique. The value of marginal gap size inlays made with the technique of extraoral optical superficial scanning was 32.97 ± 13.17 μ. Techniques of intraoral optical superficial and extraoral point laser scanning showed a lower level of accuracy (40.29 ± 21.46 μ for inlays of intraoral optical superficial scanning and 99.67 ± 37.25 μ for inlays of extraoral point laser scanning). Conclusion. Optical scanning methods in dental CAM/CAM technologies are precise methods of digitizing the spatial models; application of extraoral optical scanning methods provides the hightest precision., Uvod/Cilj. Jedan od rezultata dugogodišnjeg tehnološkog usavršavanja Cerec®3D sistema jeste implementacija jednog intraoralnog i dva ekstraoralna metoda optičkog skeniranja koji se, u zavisnosti od postojeće indikacije, primenjuju u izradi fiksnih nadoknada. Cilj rada bio je da se utvrdi stepen preciznosti optičkih metoda skeniranja Cerec®3D sistema u postupku izrade keramičkih inleja. Metode. Ispitivanje je sprovedeno u okviru tri eksperimentalne grupe inleja u čijoj izradi su primenjena tri postupka skeniranja Cerec®3D sistema. Keramički inleji izrađeni konvencionalnom metodologijom predstavljali su kontrolnu grupu. Preciznost optičkih metoda skeniranja Cerec®3D sistema ispitivana je indirektno, merenjem veličine rubnog zaptivanja između inleja i demarkacije preparacije pomoću skenirajućeg elektronskog mikroskopa (SEM). Rezultati. Istraživanjem je ustanovljeno da postoji razlika u preciznosti postojećih metoda skeniranja stomatoloških Computer aided design-computer aided manufacturing (CAD/CAM) tehnologija. Najviši stepen preciznosti pokazala je tehnika optičkog ekstraoralnog površinskog skeniranja. Vrednost rubnog zaptivanja inleja izrađenih primenom ove tehnike iznosila je 32,97 ± 13,17 μ. Tehnike intraoralnog optičkog površinskog i ekstraoralnog tačkastog skeniranja pokazuju niži nivo preciznosti (40,29 ± 21,46 μ za inleje intraoralnog optičkog površinskog i 99,67 ± 37,25 μ za inleje ekstraoralnog tačkastog skeniranja). Zaključak. Optičke metode skeniranja u stomatološkim CAD/CAM tehnologijama predstavljaju precizne metode prostorne digitalizacije modela; pri tom, najveću preciznost pruža primena ekstraoralnih optičkih metoda skeniranja.",
publisher = "Vojnomedicinska akademija - Institut za naučne informacije, Beograd",
journal = "Vojnosanitetski pregled",
title = "Accuracy of optical scanning methods of the Cerec®3D system in the process of making ceramic inlays, Preciznost optičkih metoda skeniranja Cerec®3D sistema u postupku izrade keramičkih inleja",
pages = "818-812",
number = "10",
volume = "67",
doi = "10.2298/VSP1010812T"
}

Trifković, B., Todorović, A., Lazić, V., Draganjac, M., Mirković, N.,& Jokić, B.. (2010). Accuracy of optical scanning methods of the Cerec®3D system in the process of making ceramic inlays. in Vojnosanitetski pregled
Vojnomedicinska akademija - Institut za naučne informacije, Beograd., 67(10), 812-818.
https://doi.org/10.2298/VSP1010812T

Trifković B, Todorović A, Lazić V, Draganjac M, Mirković N, Jokić B. Accuracy of optical scanning methods of the Cerec®3D system in the process of making ceramic inlays. in Vojnosanitetski pregled. 2010;67(10):812-818.
doi:10.2298/VSP1010812T .

Trifković, Branka, Todorović, Aleksandar, Lazić, Vojkan, Draganjac, Miroslav, Mirković, Nemanja, Jokić, Bojan, "Accuracy of optical scanning methods of the Cerec®3D system in the process of making ceramic inlays" in Vojnosanitetski pregled, 67, no. 10 (2010):812-818,
https://doi.org/10.2298/VSP1010812T . .