Stamenković, D.

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  • Stamenković, D. (4)
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Author's Bibliography

Determination of Stresses and Forces on the Orthodontic System by Using Numerical Simulation of the Finite Elements Method

Fercec, Janko; Glišić, Branislav; Šćepan, Ivana; Marković, Evgenija; Stamenković, D.; Anžel, Ivan; Flasker, J.; Rudolf, Rebeka

(Polish Acad Sciences Inst Physics, Warsaw, 2012)

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 .
10

Gold in the past, today and future

Rudolf, Rebeka; Anzel, M.; Marković, Evgenija; Čolić, Miodrag; Stamenković, D.

(Croatian Metallurgical Society, 2012)

TY  - JOUR
AU  - Rudolf, Rebeka
AU  - Anzel, M.
AU  - Marković, Evgenija
AU  - Čolić, Miodrag
AU  - Stamenković, D.
PY  - 2012
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1688
AB  - This paper deals with gold, which is described as a chemical element. Special attention is paid to its physical-chemical properties and, furthermore, where or in what form it can be found in nature. We discuss the role it has played through history and we inform how gold has been developed to the level it has reached today's value. Still more, when gold is broken into nanoparticles, this form could be highly useful for a wide range of processes, including general nanotechnology, electronics manufacturing and the synthesizing of different functional materials. It is important that we know that gold is also used in industry in many engineering applications (contacts in micro-electronics) and medicine (dental alloys, implants).
PB  - Croatian Metallurgical Society
T2  - Metalurgija
T1  - Gold in the past, today and future
VL  - 51
IS  - 2
SP  - 261
EP  - 264
UR  - https://hdl.handle.net/21.15107/rcub_smile_1688
ER  - 
@article{
author = "Rudolf, Rebeka and Anzel, M. and Marković, Evgenija and Čolić, Miodrag and Stamenković, D.",
year = "2012",
abstract = "This paper deals with gold, which is described as a chemical element. Special attention is paid to its physical-chemical properties and, furthermore, where or in what form it can be found in nature. We discuss the role it has played through history and we inform how gold has been developed to the level it has reached today's value. Still more, when gold is broken into nanoparticles, this form could be highly useful for a wide range of processes, including general nanotechnology, electronics manufacturing and the synthesizing of different functional materials. It is important that we know that gold is also used in industry in many engineering applications (contacts in micro-electronics) and medicine (dental alloys, implants).",
publisher = "Croatian Metallurgical Society",
journal = "Metalurgija",
title = "Gold in the past, today and future",
volume = "51",
number = "2",
pages = "261-264",
url = "https://hdl.handle.net/21.15107/rcub_smile_1688"
}
Rudolf, R., Anzel, M., Marković, E., Čolić, M.,& Stamenković, D.. (2012). Gold in the past, today and future. in Metalurgija
Croatian Metallurgical Society., 51(2), 261-264.
https://hdl.handle.net/21.15107/rcub_smile_1688
Rudolf R, Anzel M, Marković E, Čolić M, Stamenković D. Gold in the past, today and future. in Metalurgija. 2012;51(2):261-264.
https://hdl.handle.net/21.15107/rcub_smile_1688 .
Rudolf, Rebeka, Anzel, M., Marković, Evgenija, Čolić, Miodrag, Stamenković, D., "Gold in the past, today and future" in Metalurgija, 51, no. 2 (2012):261-264,
https://hdl.handle.net/21.15107/rcub_smile_1688 .
2
6

Influence of magnetic field to microbes in oral environment

Brković-Popović, Snežana; Ašanin, R.; Poštić, Srđan; Stamenković, D.; Zelić, Obrad

(Antropološko društvo Srbije, Niš i Univerzitet u Nišu - Prirodno-matematički fakultet, Niš, 2010)

TY  - JOUR
AU  - Brković-Popović, Snežana
AU  - Ašanin, R.
AU  - Poštić, Srđan
AU  - Stamenković, D.
AU  - Zelić, Obrad
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1535
AB  - From the very beginning of life, living organisms were exposed to the influence of geoelectric and geomagnetic fields, with established balance with this respect. Development of civilization has been distorted balance and harmony, imposing the extreme need for magnetism. Respecting positive effects of magnetic field to tissues, especially 'bactericide' effect, this investigation was conducted on the aim to assess the influence of magnetic field to oral microbes. Materials and method. This investigation was carried to in vitro. To obtain adequate samples of deposits or specimens of dental plaque, were from certain microbes which were isolated from human mouth. Microbes isolated from samples were Streptococcus parasanguis, Staphylococcus epidermidis, Rodococcus equi and Candida albicans. Turbidimetry array was applied for investigation of this kind. The method of spectrophotometry was applied, to obtain optical den­sity (OD) value and to establish indirectly a growth of intensity of sowed microbe's stains on the basis of modified OD of agar. Investigation was carried on two level of density of microbes of 1 CFU/ml as well as of 10 CFU/ml after 24h period and 48h period of incubation of microbes. Results. Positive effect of magnetic field upon dental plaque of bacteria reduction in vitro was recognized. At the baseline-initial 24 hours period of measurement of exposition to magnetic field, the count of all isolated mi­crobes has been significantly reduced, in the both of agar of increased density as well as of agar with reduced OD. Over the time, the decrement of influence of magnets versus microbes in vitro has been detected. Conclusion. Count of this influence of the magnet to microbes is of extreme importance in parodontology. This way, the positive influence of magnet to supporting tissues and quality and durability of overdenture was confirmed. .
AB  - Sva živa bića su izložena dejstvu geoelektričnog i geomagnetskog polja i u tom smislu je ostvarena ravnoteža. Sa razvojem civilizacije ta ravnoteža se narušava u smislu da slabi uticaj geomagnetnog polja i postoji t.z.v. 'glad' za magnetizmom. Imajući u vidu pozitivan uticaj magneta na sva biološka tkiva, posebno 'baktericidni' efekat israživanje je sprovedeno sa ciljem da se ispita uticaj magnetnog polja na oralnu mikrofloru. Materijal i metod: Istraživanja su sprovedena in vitro. Uzorci, tj. brisevi zubnih naslaga poticali su sa zuba pacijenata Stomatološkog fakulteta u Beogradu. Iz uzoraka su izolovani: Streptococcus parasanguis, Staphylococcus epidermidis, Rodococcus equi i Candida albicans. Korišćena je metoda turbidimetrija gde se spektrofotometrom na osnovu optičke gustine bujona indirektno utvrđuje intenzitet rasta zasejanih mikro-organizama. Ispitivanje je vršeno sa 2 gustine mikroorganizama 1 i 10 CFU/ml i to nakon 24 i 48 h inkubacije mikroorganizama. Rezultati pokazuju da je došlo do redukcije broja bakterija u in vitro uslovima. U prvih 24 h izloženosti uticaju magnetnog polja ta redukcija je bila značajna kako u bujonima veće tako i manje gustine. Tokom vremena uticaj magneta na brojnost mikroflore u in vitro uslovima opada. Zaključak Ovakav uticaj magneta na brojnost mikroorganizama je značajan u parodontologiji pa samim tim ima pozitivan uticaj na potporna tkiva ispod supraden-talnih proteza, na njihov kvalitet i trajnost. .
PB  - Antropološko društvo Srbije, Niš i Univerzitet u Nišu - Prirodno-matematički fakultet, Niš
T2  - Glasnik Antropološkog društva Srbije
T1  - Influence of magnetic field to microbes in oral environment
T1  - Uticaj magnetnog polja na oralnu mikrofloru
IS  - 45
SP  - 511
EP  - 519
UR  - https://hdl.handle.net/21.15107/rcub_smile_1535
ER  - 
@article{
author = "Brković-Popović, Snežana and Ašanin, R. and Poštić, Srđan and Stamenković, D. and Zelić, Obrad",
year = "2010",
abstract = "From the very beginning of life, living organisms were exposed to the influence of geoelectric and geomagnetic fields, with established balance with this respect. Development of civilization has been distorted balance and harmony, imposing the extreme need for magnetism. Respecting positive effects of magnetic field to tissues, especially 'bactericide' effect, this investigation was conducted on the aim to assess the influence of magnetic field to oral microbes. Materials and method. This investigation was carried to in vitro. To obtain adequate samples of deposits or specimens of dental plaque, were from certain microbes which were isolated from human mouth. Microbes isolated from samples were Streptococcus parasanguis, Staphylococcus epidermidis, Rodococcus equi and Candida albicans. Turbidimetry array was applied for investigation of this kind. The method of spectrophotometry was applied, to obtain optical den­sity (OD) value and to establish indirectly a growth of intensity of sowed microbe's stains on the basis of modified OD of agar. Investigation was carried on two level of density of microbes of 1 CFU/ml as well as of 10 CFU/ml after 24h period and 48h period of incubation of microbes. Results. Positive effect of magnetic field upon dental plaque of bacteria reduction in vitro was recognized. At the baseline-initial 24 hours period of measurement of exposition to magnetic field, the count of all isolated mi­crobes has been significantly reduced, in the both of agar of increased density as well as of agar with reduced OD. Over the time, the decrement of influence of magnets versus microbes in vitro has been detected. Conclusion. Count of this influence of the magnet to microbes is of extreme importance in parodontology. This way, the positive influence of magnet to supporting tissues and quality and durability of overdenture was confirmed. ., Sva živa bića su izložena dejstvu geoelektričnog i geomagnetskog polja i u tom smislu je ostvarena ravnoteža. Sa razvojem civilizacije ta ravnoteža se narušava u smislu da slabi uticaj geomagnetnog polja i postoji t.z.v. 'glad' za magnetizmom. Imajući u vidu pozitivan uticaj magneta na sva biološka tkiva, posebno 'baktericidni' efekat israživanje je sprovedeno sa ciljem da se ispita uticaj magnetnog polja na oralnu mikrofloru. Materijal i metod: Istraživanja su sprovedena in vitro. Uzorci, tj. brisevi zubnih naslaga poticali su sa zuba pacijenata Stomatološkog fakulteta u Beogradu. Iz uzoraka su izolovani: Streptococcus parasanguis, Staphylococcus epidermidis, Rodococcus equi i Candida albicans. Korišćena je metoda turbidimetrija gde se spektrofotometrom na osnovu optičke gustine bujona indirektno utvrđuje intenzitet rasta zasejanih mikro-organizama. Ispitivanje je vršeno sa 2 gustine mikroorganizama 1 i 10 CFU/ml i to nakon 24 i 48 h inkubacije mikroorganizama. Rezultati pokazuju da je došlo do redukcije broja bakterija u in vitro uslovima. U prvih 24 h izloženosti uticaju magnetnog polja ta redukcija je bila značajna kako u bujonima veće tako i manje gustine. Tokom vremena uticaj magneta na brojnost mikroflore u in vitro uslovima opada. Zaključak Ovakav uticaj magneta na brojnost mikroorganizama je značajan u parodontologiji pa samim tim ima pozitivan uticaj na potporna tkiva ispod supraden-talnih proteza, na njihov kvalitet i trajnost. .",
publisher = "Antropološko društvo Srbije, Niš i Univerzitet u Nišu - Prirodno-matematički fakultet, Niš",
journal = "Glasnik Antropološkog društva Srbije",
title = "Influence of magnetic field to microbes in oral environment, Uticaj magnetnog polja na oralnu mikrofloru",
number = "45",
pages = "511-519",
url = "https://hdl.handle.net/21.15107/rcub_smile_1535"
}
Brković-Popović, S., Ašanin, R., Poštić, S., Stamenković, D.,& Zelić, O.. (2010). Influence of magnetic field to microbes in oral environment. in Glasnik Antropološkog društva Srbije
Antropološko društvo Srbije, Niš i Univerzitet u Nišu - Prirodno-matematički fakultet, Niš.(45), 511-519.
https://hdl.handle.net/21.15107/rcub_smile_1535
Brković-Popović S, Ašanin R, Poštić S, Stamenković D, Zelić O. Influence of magnetic field to microbes in oral environment. in Glasnik Antropološkog društva Srbije. 2010;(45):511-519.
https://hdl.handle.net/21.15107/rcub_smile_1535 .
Brković-Popović, Snežana, Ašanin, R., Poštić, Srđan, Stamenković, D., Zelić, Obrad, "Influence of magnetic field to microbes in oral environment" in Glasnik Antropološkog društva Srbije, no. 45 (2010):511-519,
https://hdl.handle.net/21.15107/rcub_smile_1535 .

Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium

Rudolf, Rebeka; Anžel, Ivan; Gusel, L.; Stamenković, D.; Todorović, A.; Čolić, Miodrag

(Korean Inst Metals Materials, Seoul, 2010)

TY  - JOUR
AU  - Rudolf, Rebeka
AU  - Anžel, Ivan
AU  - Gusel, L.
AU  - Stamenković, D.
AU  - Todorović, A.
AU  - Čolić, Miodrag
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1579
AB  - Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloys' corrosive behaviour. Microstructural characterization was carried-out by optical and scanning electron microscopy, in addition to energy dispersive X-ray analysis. X-ray diffraction was applied to determine the phases' composition and their contribution in the alloys. Additionally, simultaneous thermal analysis was used to identify the temperatures of phase transformations. An overall assessment before conditioning showed that Au-Pt I is a two-phase alloy containing a dominant Au-rich alpha(1) phase and a minor Pt-rich alpha(2) phase, while the Au-Pt II alloy contains in addition three minor phases: AuZn3, Pt3Zn and Au1.4Zn0.52. The highest content of Zn (up to 6.76 wt.%) was detected in the Pt3Zn phase. After RPMI cell culture medium conditioning, the Pt3Zn and AuZn3 phases disappeared, suggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.
PB  - Korean Inst Metals Materials, Seoul
T2  - Metals & Materials International
T1  - Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium
VL  - 16
IS  - 6
SP  - 931
EP  - 940
DO  - 10.1007/s12540-010-1211-4
ER  - 
@article{
author = "Rudolf, Rebeka and Anžel, Ivan and Gusel, L. and Stamenković, D. and Todorović, A. and Čolić, Miodrag",
year = "2010",
abstract = "Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloys' corrosive behaviour. Microstructural characterization was carried-out by optical and scanning electron microscopy, in addition to energy dispersive X-ray analysis. X-ray diffraction was applied to determine the phases' composition and their contribution in the alloys. Additionally, simultaneous thermal analysis was used to identify the temperatures of phase transformations. An overall assessment before conditioning showed that Au-Pt I is a two-phase alloy containing a dominant Au-rich alpha(1) phase and a minor Pt-rich alpha(2) phase, while the Au-Pt II alloy contains in addition three minor phases: AuZn3, Pt3Zn and Au1.4Zn0.52. The highest content of Zn (up to 6.76 wt.%) was detected in the Pt3Zn phase. After RPMI cell culture medium conditioning, the Pt3Zn and AuZn3 phases disappeared, suggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.",
publisher = "Korean Inst Metals Materials, Seoul",
journal = "Metals & Materials International",
title = "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium",
volume = "16",
number = "6",
pages = "931-940",
doi = "10.1007/s12540-010-1211-4"
}
Rudolf, R., Anžel, I., Gusel, L., Stamenković, D., Todorović, A.,& Čolić, M.. (2010). Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International
Korean Inst Metals Materials, Seoul., 16(6), 931-940.
https://doi.org/10.1007/s12540-010-1211-4
Rudolf R, Anžel I, Gusel L, Stamenković D, Todorović A, Čolić M. Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International. 2010;16(6):931-940.
doi:10.1007/s12540-010-1211-4 .
Rudolf, Rebeka, Anžel, Ivan, Gusel, L., Stamenković, D., Todorović, A., Čolić, Miodrag, "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium" in Metals & Materials International, 16, no. 6 (2010):931-940,
https://doi.org/10.1007/s12540-010-1211-4 . .
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