TY  - CHAP
AU  - Mitrović, Aleksandra
AU  - Stamenković, Dragomir
AU  - Popović, Dejana
AU  - Dragičević, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8526
AB  - Hydrogels have peculiar physical and chemical properties and therefore, are used in a variety of biomedical applications including drug delivery agents, prosthetic devices, the repair and replacement of soft tissues, contact lenses, etc. Consequently, investigation of mechanical, physical and chemical properties is crucial in biomedical application of hydrogels. Poly (2-hydroxyethyl methacrylate) (pHEMA), as a biocompatible hydrogel, was first hydrogel used for making soft contact lenses. Many researches have been modified pHEMA with the aim of improving its properties. Application of nanotechnology is one of the possible solutions for improving the characteristics of this biocompatible hydrogel. In this paper, polyhydroxyethyl methacrylate was used as standard material for soft contact lenses (SL 38). This material was incorporated with fullerene C60 (SL38-A), fullerol C60(OH)24 (SL 38-B) and fullerene metformin hydroxylate C60(OH)12(OC4N5H10)12 (SL 38-C), respectively. Three new nanophotonic soft contact lenses were made. The main goal of this research was to develop appropriate process parameters for soft contact lens micro-turning. Also, studying the thermal decomposition of standard soft contact lens, pHEMA, as well as three new nanophotonic soft contact lenses was one of the main objectives. Results have shown that manufacturing process of nanofotonic soft contact lens is considered to be a micro-turning process regarding the cutting depth and tool nose ratio. Thermal stability of all three nanofotonic soft contact lenses was significantly improved comparing to the standard soft contact lens. Still, further research needs to be done so these nonophotonic soft contact lenses could find practical application in the field of biomedical engineering. © Springer Nature Switzerland AG 2020.
T2  - Lecture Notes in Networks and Systems
T1  - Manufacturing Process and Thermal Stability of Nanophotonic Soft Contact Lenses
VL  - 90
SP  - 184
EP  - 199
DO  - 10.1007/978-3-030-30853-7_11
ER  - 

@inbook{
author = "Mitrović, Aleksandra and Stamenković, Dragomir and Popović, Dejana and Dragičević, Aleksandra",
year = "2020",
abstract = "Hydrogels have peculiar physical and chemical properties and therefore, are used in a variety of biomedical applications including drug delivery agents, prosthetic devices, the repair and replacement of soft tissues, contact lenses, etc. Consequently, investigation of mechanical, physical and chemical properties is crucial in biomedical application of hydrogels. Poly (2-hydroxyethyl methacrylate) (pHEMA), as a biocompatible hydrogel, was first hydrogel used for making soft contact lenses. Many researches have been modified pHEMA with the aim of improving its properties. Application of nanotechnology is one of the possible solutions for improving the characteristics of this biocompatible hydrogel. In this paper, polyhydroxyethyl methacrylate was used as standard material for soft contact lenses (SL 38). This material was incorporated with fullerene C60 (SL38-A), fullerol C60(OH)24 (SL 38-B) and fullerene metformin hydroxylate C60(OH)12(OC4N5H10)12 (SL 38-C), respectively. Three new nanophotonic soft contact lenses were made. The main goal of this research was to develop appropriate process parameters for soft contact lens micro-turning. Also, studying the thermal decomposition of standard soft contact lens, pHEMA, as well as three new nanophotonic soft contact lenses was one of the main objectives. Results have shown that manufacturing process of nanofotonic soft contact lens is considered to be a micro-turning process regarding the cutting depth and tool nose ratio. Thermal stability of all three nanofotonic soft contact lenses was significantly improved comparing to the standard soft contact lens. Still, further research needs to be done so these nonophotonic soft contact lenses could find practical application in the field of biomedical engineering. © Springer Nature Switzerland AG 2020.",
journal = "Lecture Notes in Networks and Systems",
booktitle = "Manufacturing Process and Thermal Stability of Nanophotonic Soft Contact Lenses",
volume = "90",
pages = "184-199",
doi = "10.1007/978-3-030-30853-7_11"
}

Mitrović, A., Stamenković, D., Popović, D.,& Dragičević, A.. (2020). Manufacturing Process and Thermal Stability of Nanophotonic Soft Contact Lenses. in Lecture Notes in Networks and Systems, 90, 184-199.
https://doi.org/10.1007/978-3-030-30853-7_11

Mitrović A, Stamenković D, Popović D, Dragičević A. Manufacturing Process and Thermal Stability of Nanophotonic Soft Contact Lenses. in Lecture Notes in Networks and Systems. 2020;90:184-199.
doi:10.1007/978-3-030-30853-7_11 .

Mitrović, Aleksandra, Stamenković, Dragomir, Popović, Dejana, Dragičević, Aleksandra, "Manufacturing Process and Thermal Stability of Nanophotonic Soft Contact Lenses" in Lecture Notes in Networks and Systems, 90 (2020):184-199,
https://doi.org/10.1007/978-3-030-30853-7_11 . .

TY  - CHAP
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
AU  - Maslarević, Aleksandar
AU  - Adžić, Vuk
AU  - Popović, Dejana
AU  - Milošević, Miloš
AU  - Antonović, Dušan
PY  - 2019
UR  - http://link.springer.com/10.1007/978-3-319-99620-2_1
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8106
AB  - One of the main objectives in research and development of resin based cements (RBCs) is to enhance their clinical longevity and ease of use. In spite of the undeniable technological advances introduced in the last few decades, the polymerization shrinkage i.e. strain that accompanies the chain-growth polymerization of dimethacrylate monomers remains one of the major concerns for the clinical performance of composite restorations. Also, RBCs can produce a considerable amount of heat, due to the light energy from the curing lights and exothermic reaction of polymerization. The purpose of this study was to determine the temperature changes during the photo-polymerization using thermocouples and to measure strain field of the self-etching, self-adhesive RBC, Maxcem Elite (Kerr, Orange, CA, USA) (ø5 × 1Â mm - Group I and ø5 × 2Â mm - Group II) using experimental technique, 3D Digital Image Correlation (DIC) method. Digital images were recorded immediately after photo-polymerization of the samples with a LED-curing unit for 20Â s, according to manufacturer’s recommendation. Vickers microhardness was determined after photo-polymerization and after 24Â h. Temperature curves for both groups indicated similar patterns but the peak temperature of Group II was significantly higher compared to peak temperature of Group I. DIC showed that peripheral zone of the samples had the highest strain values in both groups. Group I indicated significantly higher values of hardness. All the results were material-dependent and probably correlated to the composition of each material, which is not fully disclosed by the manufacturers. © Springer Nature Switzerland AG 2019.
T2  - Lecture Notes in Networks and Systems
T1  - Thermal and Mechanical Characteristics of Dual Cure Self-etching, Self-adhesive Resin Based Cement
VL  - 54
SP  - 3
EP  - 15
DO  - 10.1007/978-3-319-99620-2_1
ER  - 

@inbook{
author = "Mitrović, Aleksandra and Mitrović, Nenad and Maslarević, Aleksandar and Adžić, Vuk and Popović, Dejana and Milošević, Miloš and Antonović, Dušan",
year = "2019",
abstract = "One of the main objectives in research and development of resin based cements (RBCs) is to enhance their clinical longevity and ease of use. In spite of the undeniable technological advances introduced in the last few decades, the polymerization shrinkage i.e. strain that accompanies the chain-growth polymerization of dimethacrylate monomers remains one of the major concerns for the clinical performance of composite restorations. Also, RBCs can produce a considerable amount of heat, due to the light energy from the curing lights and exothermic reaction of polymerization. The purpose of this study was to determine the temperature changes during the photo-polymerization using thermocouples and to measure strain field of the self-etching, self-adhesive RBC, Maxcem Elite (Kerr, Orange, CA, USA) (ø5 × 1Â mm - Group I and ø5 × 2Â mm - Group II) using experimental technique, 3D Digital Image Correlation (DIC) method. Digital images were recorded immediately after photo-polymerization of the samples with a LED-curing unit for 20Â s, according to manufacturer’s recommendation. Vickers microhardness was determined after photo-polymerization and after 24Â h. Temperature curves for both groups indicated similar patterns but the peak temperature of Group II was significantly higher compared to peak temperature of Group I. DIC showed that peripheral zone of the samples had the highest strain values in both groups. Group I indicated significantly higher values of hardness. All the results were material-dependent and probably correlated to the composition of each material, which is not fully disclosed by the manufacturers. © Springer Nature Switzerland AG 2019.",
journal = "Lecture Notes in Networks and Systems",
booktitle = "Thermal and Mechanical Characteristics of Dual Cure Self-etching, Self-adhesive Resin Based Cement",
volume = "54",
pages = "3-15",
doi = "10.1007/978-3-319-99620-2_1"
}

Mitrović, A., Mitrović, N., Maslarević, A., Adžić, V., Popović, D., Milošević, M.,& Antonović, D.. (2019). Thermal and Mechanical Characteristics of Dual Cure Self-etching, Self-adhesive Resin Based Cement. in Lecture Notes in Networks and Systems, 54, 3-15.
https://doi.org/10.1007/978-3-319-99620-2_1

Mitrović A, Mitrović N, Maslarević A, Adžić V, Popović D, Milošević M, Antonović D. Thermal and Mechanical Characteristics of Dual Cure Self-etching, Self-adhesive Resin Based Cement. in Lecture Notes in Networks and Systems. 2019;54:3-15.
doi:10.1007/978-3-319-99620-2_1 .

Mitrović, Aleksandra, Mitrović, Nenad, Maslarević, Aleksandar, Adžić, Vuk, Popović, Dejana, Milošević, Miloš, Antonović, Dušan, "Thermal and Mechanical Characteristics of Dual Cure Self-etching, Self-adhesive Resin Based Cement" in Lecture Notes in Networks and Systems, 54 (2019):3-15,
https://doi.org/10.1007/978-3-319-99620-2_1 . .

TY  - JOUR
AU  - Mitrović, Aleksandra
AU  - Antonović, Dušan
AU  - Tanasić, Ivan
AU  - Mitrović, Nenad
AU  - Bakić, Gordana M.
AU  - Popović, Dejana
AU  - Milošević, Miloš
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8670
AB  - The introduction of resin-based cements and an adhesive-bonding system in daily dental practice has given the opportunity to increase the retention of previously conventional cemented restorations and the optimal results in esthetic. This experimental study employed the 3D Digital Image Correlation Method (3D-DIC) for detecting shrinkage strain in four dual cured composite cements. The aim was to visualize measure, analyze, and compare strain fields in four resin-based cements using the 3D-DIC method. A total of 72 samples were divided into 4 groups considering variations in sample types, diameter, and thickness. Four types of composite cements: RelyX U200 (3 M ESPE, St. Paul, MN, USA), MaxCem Elite (Kerr, Orange, CA, USA), Multilink Automix (Ivoclar Vivadent, Schaan, Liechtenstein), and SeT PP (SDI, Australia) were used. Each type had diameters of 3 mm, 4 mm, and 5 mm, respectively, combined with two different values of thickness: 1 mm and 2 mm. Thickness had an important role on strain detected in all tested materials showing higher strain in samples with 2 mm thickness compared to 1 mm samples. Shrinkage strain values were the highest in Set PP samples indicated the possibility of undesirable de-bonding.
T2  - BioMed Research International
T1  - 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements
VL  - 2019
SP  - 2041348
DO  - 10.1155/2019/2041348
ER  - 

@article{
author = "Mitrović, Aleksandra and Antonović, Dušan and Tanasić, Ivan and Mitrović, Nenad and Bakić, Gordana M. and Popović, Dejana and Milošević, Miloš",
year = "2019",
abstract = "The introduction of resin-based cements and an adhesive-bonding system in daily dental practice has given the opportunity to increase the retention of previously conventional cemented restorations and the optimal results in esthetic. This experimental study employed the 3D Digital Image Correlation Method (3D-DIC) for detecting shrinkage strain in four dual cured composite cements. The aim was to visualize measure, analyze, and compare strain fields in four resin-based cements using the 3D-DIC method. A total of 72 samples were divided into 4 groups considering variations in sample types, diameter, and thickness. Four types of composite cements: RelyX U200 (3 M ESPE, St. Paul, MN, USA), MaxCem Elite (Kerr, Orange, CA, USA), Multilink Automix (Ivoclar Vivadent, Schaan, Liechtenstein), and SeT PP (SDI, Australia) were used. Each type had diameters of 3 mm, 4 mm, and 5 mm, respectively, combined with two different values of thickness: 1 mm and 2 mm. Thickness had an important role on strain detected in all tested materials showing higher strain in samples with 2 mm thickness compared to 1 mm samples. Shrinkage strain values were the highest in Set PP samples indicated the possibility of undesirable de-bonding.",
journal = "BioMed Research International",
title = "3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements",
volume = "2019",
pages = "2041348",
doi = "10.1155/2019/2041348"
}

Mitrović, A., Antonović, D., Tanasić, I., Mitrović, N., Bakić, G. M., Popović, D.,& Milošević, M.. (2019). 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements. in BioMed Research International, 2019, 2041348.
https://doi.org/10.1155/2019/2041348

Mitrović A, Antonović D, Tanasić I, Mitrović N, Bakić GM, Popović D, Milošević M. 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements. in BioMed Research International. 2019;2019:2041348.
doi:10.1155/2019/2041348 .

Mitrović, Aleksandra, Antonović, Dušan, Tanasić, Ivan, Mitrović, Nenad, Bakić, Gordana M., Popović, Dejana, Milošević, Miloš, "3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements" in BioMed Research International, 2019 (2019):2041348,
https://doi.org/10.1155/2019/2041348 . .