TY  - JOUR
AU  - Fercec, Janko
AU  - Kos, Matija
AU  - Bruncko, Mihael
AU  - Anžel, Ivan
AU  - Glišić, Branislav
AU  - Marković, Evgenija
AU  - Rudolf, Rebeka
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1937
AB  - The aim of this paper was to analyse the characteristic properties of six different, commercially available nickel-titanium orthodontic wires with a diameter of 0.305 mm (0.014"). The characteristic properties were determined by using semi-quantitative EDX analyses, DSC analyses for a determination of the phase temperatures, and a tensile test to obtain the mechanical properties of the wires. The investigation of the chemical composition showed an equiatomic NiTi alloy. Analyses of phase temperatures showed that the nickel-titanium orthodontic wires were, in an austenitic microstructure, exhibiting a superelastic effect in the oral environment. The uniaxial tensile stress strain curves showed different values for the beginning and the end of the transformation range during the loading.
PB  - Institute of Metals and Technology
T2  - Materiali in Tehnologije
T1  - Comparison of niti orthodontic archwires and a determination of the characteristic properties
VL  - 48
IS  - 1
SP  - 99
EP  - 104
UR  - https://hdl.handle.net/21.15107/rcub_smile_1937
ER  - 

@article{
author = "Fercec, Janko and Kos, Matija and Bruncko, Mihael and Anžel, Ivan and Glišić, Branislav and Marković, Evgenija and Rudolf, Rebeka",
year = "2014",
abstract = "The aim of this paper was to analyse the characteristic properties of six different, commercially available nickel-titanium orthodontic wires with a diameter of 0.305 mm (0.014"). The characteristic properties were determined by using semi-quantitative EDX analyses, DSC analyses for a determination of the phase temperatures, and a tensile test to obtain the mechanical properties of the wires. The investigation of the chemical composition showed an equiatomic NiTi alloy. Analyses of phase temperatures showed that the nickel-titanium orthodontic wires were, in an austenitic microstructure, exhibiting a superelastic effect in the oral environment. The uniaxial tensile stress strain curves showed different values for the beginning and the end of the transformation range during the loading.",
publisher = "Institute of Metals and Technology",
journal = "Materiali in Tehnologije",
title = "Comparison of niti orthodontic archwires and a determination of the characteristic properties",
volume = "48",
number = "1",
pages = "99-104",
url = "https://hdl.handle.net/21.15107/rcub_smile_1937"
}

Fercec, J., Kos, M., Bruncko, M., Anžel, I., Glišić, B., Marković, E.,& Rudolf, R.. (2014). Comparison of niti orthodontic archwires and a determination of the characteristic properties. in Materiali in Tehnologije
Institute of Metals and Technology., 48(1), 99-104.
https://hdl.handle.net/21.15107/rcub_smile_1937

Fercec J, Kos M, Bruncko M, Anžel I, Glišić B, Marković E, Rudolf R. Comparison of niti orthodontic archwires and a determination of the characteristic properties. in Materiali in Tehnologije. 2014;48(1):99-104.
https://hdl.handle.net/21.15107/rcub_smile_1937 .

Fercec, Janko, Kos, Matija, Bruncko, Mihael, Anžel, Ivan, Glišić, Branislav, Marković, Evgenija, Rudolf, Rebeka, "Comparison of niti orthodontic archwires and a determination of the characteristic properties" in Materiali in Tehnologije, 48, no. 1 (2014):99-104,
https://hdl.handle.net/21.15107/rcub_smile_1937 .

TY  - JOUR
AU  - Fercec, Janko
AU  - Glišić, Branislav
AU  - Šćepan, Ivana
AU  - Marković, Evgenija
AU  - Stamenković, D.
AU  - Anžel, Ivan
AU  - Flasker, J.
AU  - Rudolf, Rebeka
PY  - 2012
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1767
AB  - This study was addressed to use knowledge about the orthodontic system with numerical simulation of the finite elements method. For the first time we simulated the stresses on the orthodontic system and, in this manner, calculated the orthodontic force on the tooth. A 3D orthodontic model or orthodontic system was designed resembling moderate crowding in the dental arch with all supporting structures. CATIA V5 computer software was used to set up a model for the orthodontic system and ABAQUS was used for simulation of the stresses on the orthodontic system. Our attention was focused on the stresses on the tooth lateral incisor and its periodontal ligament. The results of the numerical simulation showed complex stresses on the tooth lateral incisor and its periodontal ligament. In this paper there is presented a calculation of the orthodontic force acting on the tooth lateral incisor due to the orthodontic wire. This orthodontic force was calculated from the stresses on the bracket. The calculated orthodontic force was in the area which is considered as the optimal orthodontic force for movement of the tooth.
PB  - Polish Acad Sciences Inst Physics, Warsaw
T2  - Acta Physica Polonica A
T1  - Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method
VL  - 122
IS  - 4
SP  - 659
EP  - 665
UR  - https://hdl.handle.net/21.15107/rcub_smile_1767
ER  - 

@article{
author = "Fercec, Janko and Glišić, Branislav and Šćepan, Ivana and Marković, Evgenija and Stamenković, D. and Anžel, Ivan and Flasker, J. and Rudolf, Rebeka",
year = "2012",
abstract = "This study was addressed to use knowledge about the orthodontic system with numerical simulation of the finite elements method. For the first time we simulated the stresses on the orthodontic system and, in this manner, calculated the orthodontic force on the tooth. A 3D orthodontic model or orthodontic system was designed resembling moderate crowding in the dental arch with all supporting structures. CATIA V5 computer software was used to set up a model for the orthodontic system and ABAQUS was used for simulation of the stresses on the orthodontic system. Our attention was focused on the stresses on the tooth lateral incisor and its periodontal ligament. The results of the numerical simulation showed complex stresses on the tooth lateral incisor and its periodontal ligament. In this paper there is presented a calculation of the orthodontic force acting on the tooth lateral incisor due to the orthodontic wire. This orthodontic force was calculated from the stresses on the bracket. The calculated orthodontic force was in the area which is considered as the optimal orthodontic force for movement of the tooth.",
publisher = "Polish Acad Sciences Inst Physics, Warsaw",
journal = "Acta Physica Polonica A",
title = "Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method",
volume = "122",
number = "4",
pages = "659-665",
url = "https://hdl.handle.net/21.15107/rcub_smile_1767"
}

Fercec, J., Glišić, B., Šćepan, I., Marković, E., Stamenković, D., Anžel, I., Flasker, J.,& Rudolf, R.. (2012). Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method. in Acta Physica Polonica A
Polish Acad Sciences Inst Physics, Warsaw., 122(4), 659-665.
https://hdl.handle.net/21.15107/rcub_smile_1767

Fercec J, Glišić B, Šćepan I, Marković E, Stamenković D, Anžel I, Flasker J, Rudolf R. Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method. in Acta Physica Polonica A. 2012;122(4):659-665.
https://hdl.handle.net/21.15107/rcub_smile_1767 .

Fercec, Janko, Glišić, Branislav, Šćepan, Ivana, Marković, Evgenija, Stamenković, D., Anžel, Ivan, Flasker, J., Rudolf, Rebeka, "Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method" in Acta Physica Polonica A, 122, no. 4 (2012):659-665,
https://hdl.handle.net/21.15107/rcub_smile_1767 .

TY  - JOUR
AU  - Čolić, Miodrag
AU  - Rudolf, Rebeka
AU  - Stamenković, Dragoslav
AU  - Anžel, Ivan
AU  - Vucević, Dragana
AU  - Jenko, Monika
AU  - Lazić, Vojkan
AU  - Lojen, Gorazd
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1553
AB  - Cu-Al-Ni shape memory alloys (SMAs) have been investigated as materials for medical devices, but their biomedical application is still limited. The aim of this work was to compare the microstructure, corrosion and cytotoxicity in vitro of a Cu-Al-Ni SMA. Rapidly solidified (RS) thin ribbons, manufactured via melt spinning, were used for the tests. The control alloy was a permanent mould casting of the same composition, but without shape memory effect. The results show that RS ribbons are significantly more resistant to corrosion compared with the control alloy, as judged by the lesser release of Cu and Ni into the conditioning medium. These results correlate with the finding that RS ribbons were not cytotoxic to L929 mouse fibroblasts and rat thymocytes. In addition, the RS ribbon conditioning medium inhibited cellular proliferation and IL-2 production by activated rat splenocytes to a much lesser extent. The inhibitory effects were almost completely abolished by conditioning the RS ribbons in culture medium for 4 weeks. Microstructural analysis showed that RS ribbons are martensitic, with boron particles as a minor phase. In contrast, the control Cu-Al-Ni alloy had a complex multiphase microstructure. Examination of the alloy surfaces after conditioning by energy dispersive X-ray and Auger electron spectroscopy showed the formation of Cu and Al oxide layers and confirmed that the metals in RS ribbons are less susceptible to oxidation and corrosion compared with the control alloy. In conclusion, these results suggest that rapid solidification significantly improves the corrosion stability and biocompatibility in vitro of Cu-Al-Ni SMA ribbons.
PB  - Elsevier Sci Ltd, Oxford
T2  - Acta Biomaterialia
T1  - Relationship between microstructure, cytotoxicity and corrosion properties of a Cu-Al-Ni shape memory alloy
VL  - 6
IS  - 1
SP  - 308
EP  - 317
DO  - 10.1016/j.actbio.2009.06.027
ER  - 

@article{
author = "Čolić, Miodrag and Rudolf, Rebeka and Stamenković, Dragoslav and Anžel, Ivan and Vucević, Dragana and Jenko, Monika and Lazić, Vojkan and Lojen, Gorazd",
year = "2010",
abstract = "Cu-Al-Ni shape memory alloys (SMAs) have been investigated as materials for medical devices, but their biomedical application is still limited. The aim of this work was to compare the microstructure, corrosion and cytotoxicity in vitro of a Cu-Al-Ni SMA. Rapidly solidified (RS) thin ribbons, manufactured via melt spinning, were used for the tests. The control alloy was a permanent mould casting of the same composition, but without shape memory effect. The results show that RS ribbons are significantly more resistant to corrosion compared with the control alloy, as judged by the lesser release of Cu and Ni into the conditioning medium. These results correlate with the finding that RS ribbons were not cytotoxic to L929 mouse fibroblasts and rat thymocytes. In addition, the RS ribbon conditioning medium inhibited cellular proliferation and IL-2 production by activated rat splenocytes to a much lesser extent. The inhibitory effects were almost completely abolished by conditioning the RS ribbons in culture medium for 4 weeks. Microstructural analysis showed that RS ribbons are martensitic, with boron particles as a minor phase. In contrast, the control Cu-Al-Ni alloy had a complex multiphase microstructure. Examination of the alloy surfaces after conditioning by energy dispersive X-ray and Auger electron spectroscopy showed the formation of Cu and Al oxide layers and confirmed that the metals in RS ribbons are less susceptible to oxidation and corrosion compared with the control alloy. In conclusion, these results suggest that rapid solidification significantly improves the corrosion stability and biocompatibility in vitro of Cu-Al-Ni SMA ribbons.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Acta Biomaterialia",
title = "Relationship between microstructure, cytotoxicity and corrosion properties of a Cu-Al-Ni shape memory alloy",
volume = "6",
number = "1",
pages = "308-317",
doi = "10.1016/j.actbio.2009.06.027"
}

Čolić, M., Rudolf, R., Stamenković, D., Anžel, I., Vucević, D., Jenko, M., Lazić, V.,& Lojen, G.. (2010). Relationship between microstructure, cytotoxicity and corrosion properties of a Cu-Al-Ni shape memory alloy. in Acta Biomaterialia
Elsevier Sci Ltd, Oxford., 6(1), 308-317.
https://doi.org/10.1016/j.actbio.2009.06.027

Čolić M, Rudolf R, Stamenković D, Anžel I, Vucević D, Jenko M, Lazić V, Lojen G. Relationship between microstructure, cytotoxicity and corrosion properties of a Cu-Al-Ni shape memory alloy. in Acta Biomaterialia. 2010;6(1):308-317.
doi:10.1016/j.actbio.2009.06.027 .

Čolić, Miodrag, Rudolf, Rebeka, Stamenković, Dragoslav, Anžel, Ivan, Vucević, Dragana, Jenko, Monika, Lazić, Vojkan, Lojen, Gorazd, "Relationship between microstructure, cytotoxicity and corrosion properties of a Cu-Al-Ni shape memory alloy" in Acta Biomaterialia, 6, no. 1 (2010):308-317,
https://doi.org/10.1016/j.actbio.2009.06.027 . .