TY  - JOUR
AU  - Lazouzi, Gamal A.
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša Z.
AU  - Perić, Tamara
AU  - Volkov-Husović, Tatjana D.
AU  - Spasojević, Pavle M.
AU  - Jančić-Heinemann, Radmila M.
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2373
AB  - Dental materials have specific requirements regarding behavior in exploitation conditions. Poly (methyl methacrylate) (PMMA) is one of the most commonly used prosthetic materials. It is of interest to improve the mechanical properties of the polymer matrix by adding reinforcements in the form of ceramic particles. It has been shown that adding very small amounts of particles to the material, substantially improved mechanical properties of PMMA modified by dimethyl itaconate (PMMA/DMI). In this paper, different sorts of alumina fillers will be examined. Commercial alumina particles and micro particles of alumina obtained from the sol-gel technique influence the mechanical properties of the composite material obtained. Sol-gel techniques was the mean to synthesize pure alumina particles and ferrous oxide doped alumina particles. Composites are prepared with 1 wt. %, 3 wt. % and 5 wt. % of alumina based particles. It has been shown that all the tested fillers improve the flexular properties of the material relative to the pure matrix PMMA/DMI and the most suitable concentration of fillers was 1 wt. %. Among the types of fillers tested alumina particles obtained by sol-gel technique, perfomed in the best way in improving the flexural strength and modulus.
AB  - Dentalni materijali imaju posebne zahteve u vezi sa ponašanjem u uslovima eksploatacije. Poli(metil metakrilat) (PMMA) predstavlja jedan od često korišćenih materijala u protetici. Od značajnog je interesa da se poboljšaju mehanička svojstva polimerne matrice dodatkom ojačanja u obliku keramičkih čestica. Pokazalo se da se dodavanjem veoma malih količina čestica u materijal dobijaju bitno poboljšana mehanička svojstva PMMA modifikovanog dodatkom dimetil itakonata (PMMMA/DMI). U okviru ovog rada ispitaće se kako utiče dodatak komercijalnih nanočestica aluminijum oksida i mikro čestica aluminijum oksida dobijenih sol-gel tehnikom na mehanička svojstva dobijenog kompozitnog materijala. Sol-gel tehnikom sintetisane su čiste aluminijum oksidne čestice i čestice dopirane gvožđe oksidom. Pripremeljeni su kompozitni materijali sa 1 mas. %, 3 mas. % i 5 mas. % čestica na bazi aluminijum oksida. Pokazano je da svi testirani punioci poboljšavaju savojna svojstva materijala u odnosu na čistu matricu PMMA/DMI i da je najpogodnija količina čestica 1 mas. %. Između svih vrsta dodatih čestica, mikro čestice aluminijum oksida dobijenih sol-gel tehnikom su pokazale najbolje vrednosti poboljšanja savojne čvrstoće i modula.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - The influence of the shape and size of the AL2O3 particles on the flexural properties of the PMMA composite modified by the addition of dimethyl itaconate
T1  - Uticaj oblika i veličine čestica AL2O3 na savojna svojstva PMMA kompozita modifikovanog dodatkom dimetil itakonata
VL  - 73
IS  - 4
SP  - 511
EP  - 516
DO  - 10.5937/tehnika1804511L
ER  - 

@article{
author = "Lazouzi, Gamal A. and Vuksanović, Marija M. and Tomić, Nataša Z. and Perić, Tamara and Volkov-Husović, Tatjana D. and Spasojević, Pavle M. and Jančić-Heinemann, Radmila M.",
year = "2018",
abstract = "Dental materials have specific requirements regarding behavior in exploitation conditions. Poly (methyl methacrylate) (PMMA) is one of the most commonly used prosthetic materials. It is of interest to improve the mechanical properties of the polymer matrix by adding reinforcements in the form of ceramic particles. It has been shown that adding very small amounts of particles to the material, substantially improved mechanical properties of PMMA modified by dimethyl itaconate (PMMA/DMI). In this paper, different sorts of alumina fillers will be examined. Commercial alumina particles and micro particles of alumina obtained from the sol-gel technique influence the mechanical properties of the composite material obtained. Sol-gel techniques was the mean to synthesize pure alumina particles and ferrous oxide doped alumina particles. Composites are prepared with 1 wt. %, 3 wt. % and 5 wt. % of alumina based particles. It has been shown that all the tested fillers improve the flexular properties of the material relative to the pure matrix PMMA/DMI and the most suitable concentration of fillers was 1 wt. %. Among the types of fillers tested alumina particles obtained by sol-gel technique, perfomed in the best way in improving the flexural strength and modulus., Dentalni materijali imaju posebne zahteve u vezi sa ponašanjem u uslovima eksploatacije. Poli(metil metakrilat) (PMMA) predstavlja jedan od često korišćenih materijala u protetici. Od značajnog je interesa da se poboljšaju mehanička svojstva polimerne matrice dodatkom ojačanja u obliku keramičkih čestica. Pokazalo se da se dodavanjem veoma malih količina čestica u materijal dobijaju bitno poboljšana mehanička svojstva PMMA modifikovanog dodatkom dimetil itakonata (PMMMA/DMI). U okviru ovog rada ispitaće se kako utiče dodatak komercijalnih nanočestica aluminijum oksida i mikro čestica aluminijum oksida dobijenih sol-gel tehnikom na mehanička svojstva dobijenog kompozitnog materijala. Sol-gel tehnikom sintetisane su čiste aluminijum oksidne čestice i čestice dopirane gvožđe oksidom. Pripremeljeni su kompozitni materijali sa 1 mas. %, 3 mas. % i 5 mas. % čestica na bazi aluminijum oksida. Pokazano je da svi testirani punioci poboljšavaju savojna svojstva materijala u odnosu na čistu matricu PMMA/DMI i da je najpogodnija količina čestica 1 mas. %. Između svih vrsta dodatih čestica, mikro čestice aluminijum oksida dobijenih sol-gel tehnikom su pokazale najbolje vrednosti poboljšanja savojne čvrstoće i modula.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "The influence of the shape and size of the AL2O3 particles on the flexural properties of the PMMA composite modified by the addition of dimethyl itaconate, Uticaj oblika i veličine čestica AL2O3 na savojna svojstva PMMA kompozita modifikovanog dodatkom dimetil itakonata",
volume = "73",
number = "4",
pages = "511-516",
doi = "10.5937/tehnika1804511L"
}

Lazouzi, G. A., Vuksanović, M. M., Tomić, N. Z., Perić, T., Volkov-Husović, T. D., Spasojević, P. M.,& Jančić-Heinemann, R. M.. (2018). The influence of the shape and size of the AL2O3 particles on the flexural properties of the PMMA composite modified by the addition of dimethyl itaconate. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(4), 511-516.
https://doi.org/10.5937/tehnika1804511L

Lazouzi GA, Vuksanović MM, Tomić NZ, Perić T, Volkov-Husović TD, Spasojević PM, Jančić-Heinemann RM. The influence of the shape and size of the AL2O3 particles on the flexural properties of the PMMA composite modified by the addition of dimethyl itaconate. in Tehnika. 2018;73(4):511-516.
doi:10.5937/tehnika1804511L .

Lazouzi, Gamal A., Vuksanović, Marija M., Tomić, Nataša Z., Perić, Tamara, Volkov-Husović, Tatjana D., Spasojević, Pavle M., Jančić-Heinemann, Radmila M., "The influence of the shape and size of the AL2O3 particles on the flexural properties of the PMMA composite modified by the addition of dimethyl itaconate" in Tehnika, 73, no. 4 (2018):511-516,
https://doi.org/10.5937/tehnika1804511L . .

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Algellai, Ahmed A.
AU  - Vuksanović, Marija M.
AU  - Trifunović, Dejan D.
AU  - Dimitrijević, Silvana B.
AU  - Obradović-Đuričić, Kosovka
AU  - Jančić-Heinemann, Radmila M.
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2372
AB  - The subject of this study is the quantitative adhesion of a UV-curing composite film based on Bis-GMA (Bisphenol A glycidylmethacrylate) / TEGDMA (triethylene glycol dimethacrylate) as a matrix and particles doped with ferrous oxide on a metal substrate. Two different metal substrates: silver and gold-spattered brass with nickel intermediate coating were used in adhesion evaluating. Adhesion was measured using micro-identation and it was compared with the measured wetting angle of composites to the substrate. It has been shown that the substrates, although with similar mechanical properties that are reflected in very close hardness values, differ by achieved adhesive bonding with the polymer UV-cured polymer film. The addition of ceramic particles in the polymer matrix increased the adhesion of the composite film to both substrates, but the adhesion trend was dependent on the substrate type.
AB  - Predmet ovog istraživanja je kvantitativna procena adhezije između fotopolimerizujućeg kompozitnog filma na bazi Bis-GMA (Bisfenol A glicidilmetakrilata)/TEGDMA (trietilen glikol dimetakrilata) kao matrice i čestica na bazi aluminijum oksida dopiranih gvožđem na metalnoj podlozi. Korišćene su dve različite metalne podloge, jedna od srebra (u daljem tekstu 'srebro') i jedna pozlaćena mesingana pločica sa međuprevlakom od nikla (u daljem tekstu 'zlato'). Adhezija je merena korišćenjem mikroindentacije i upoređena je sa izmerenim uglom kvašenja kompozita na datim podlogama. Pokazalo se da se podloge, iako sličnih mehaničkih svojstava koje se ogledaju u veoma bliskim vrednostima tvrdoće, razlikuju po ostvarenoj adhezivnoj vezi sa polimernim fotopolimerizujućim filmom. Dodatak keramičkih čestica u polimernu matricu dodatno je povećao adheziju kompozitnog filma na obe podloge, dok je trend adhezije u zavisnosti od tipa podloge održan.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates
T1  - Ispitivanje adhezije polimernih kompozitnih filmova na bazi Bis-GMA/TEGDMA na različitim metalnim podlogama
VL  - 73
IS  - 2
SP  - 218
EP  - 222
DO  - 10.5937/tehnika1802218T
ER  - 

@article{
author = "Tomić, Nataša Z. and Algellai, Ahmed A. and Vuksanović, Marija M. and Trifunović, Dejan D. and Dimitrijević, Silvana B. and Obradović-Đuričić, Kosovka and Jančić-Heinemann, Radmila M.",
year = "2018",
abstract = "The subject of this study is the quantitative adhesion of a UV-curing composite film based on Bis-GMA (Bisphenol A glycidylmethacrylate) / TEGDMA (triethylene glycol dimethacrylate) as a matrix and particles doped with ferrous oxide on a metal substrate. Two different metal substrates: silver and gold-spattered brass with nickel intermediate coating were used in adhesion evaluating. Adhesion was measured using micro-identation and it was compared with the measured wetting angle of composites to the substrate. It has been shown that the substrates, although with similar mechanical properties that are reflected in very close hardness values, differ by achieved adhesive bonding with the polymer UV-cured polymer film. The addition of ceramic particles in the polymer matrix increased the adhesion of the composite film to both substrates, but the adhesion trend was dependent on the substrate type., Predmet ovog istraživanja je kvantitativna procena adhezije između fotopolimerizujućeg kompozitnog filma na bazi Bis-GMA (Bisfenol A glicidilmetakrilata)/TEGDMA (trietilen glikol dimetakrilata) kao matrice i čestica na bazi aluminijum oksida dopiranih gvožđem na metalnoj podlozi. Korišćene su dve različite metalne podloge, jedna od srebra (u daljem tekstu 'srebro') i jedna pozlaćena mesingana pločica sa međuprevlakom od nikla (u daljem tekstu 'zlato'). Adhezija je merena korišćenjem mikroindentacije i upoređena je sa izmerenim uglom kvašenja kompozita na datim podlogama. Pokazalo se da se podloge, iako sličnih mehaničkih svojstava koje se ogledaju u veoma bliskim vrednostima tvrdoće, razlikuju po ostvarenoj adhezivnoj vezi sa polimernim fotopolimerizujućim filmom. Dodatak keramičkih čestica u polimernu matricu dodatno je povećao adheziju kompozitnog filma na obe podloge, dok je trend adhezije u zavisnosti od tipa podloge održan.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates, Ispitivanje adhezije polimernih kompozitnih filmova na bazi Bis-GMA/TEGDMA na različitim metalnim podlogama",
volume = "73",
number = "2",
pages = "218-222",
doi = "10.5937/tehnika1802218T"
}

Tomić, N. Z., Algellai, A. A., Vuksanović, M. M., Trifunović, D. D., Dimitrijević, S. B., Obradović-Đuričić, K.,& Jančić-Heinemann, R. M.. (2018). Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(2), 218-222.
https://doi.org/10.5937/tehnika1802218T

Tomić NZ, Algellai AA, Vuksanović MM, Trifunović DD, Dimitrijević SB, Obradović-Đuričić K, Jančić-Heinemann RM. Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates. in Tehnika. 2018;73(2):218-222.
doi:10.5937/tehnika1802218T .

Tomić, Nataša Z., Algellai, Ahmed A., Vuksanović, Marija M., Trifunović, Dejan D., Dimitrijević, Silvana B., Obradović-Đuričić, Kosovka, Jančić-Heinemann, Radmila M., "Examination of the adhesion of polymer composite films based on Bis-GMA/TEGDMA on different metal substrates" in Tehnika, 73, no. 2 (2018):218-222,
https://doi.org/10.5937/tehnika1802218T . .

TY  - JOUR
AU  - Algellai, Ahmed A.
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša Z.
AU  - Marinković, Aleksandar D.
AU  - Obradović-Đuričić, Kosovka
AU  - Radojević, Vesna J.
AU  - Jančić-Heinemann, Radmila M.
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2297
AB  - The objective of this study is to investigate quantitative assessment of the adhesion behavior of composite films onto a metallic surface. The composite films had UV cured Bis-GMA (Bisphenol A glycidylmethacrylate)/TEGDMA (triethylene glycol dimethacrylate) as matrix and ferrous oxide doped alumina (Al2O3 Fe) particles with two surface modifications, (3-methacryloxypropyltrimethoxysilane) (MEMO) and the vinyltris(2-methoxyethoxy) silane (VTMOEO), as reinforcement. Composites were made with 0.5, 1.5 and 3 wt% of alumina particles. Adhesion was evaluated using the micro hardness testing method. The contact angle was measured and compared to the adhesive parameter from micro hardness measurements. The form of the indent on the surface of the composite film was analyzed in order to correlate the indent morphology to the adhesion quality.
PB  - Elsevier Science Bv, Amsterdam
T2  - Materials Letters
T1  - The implementation of image analysis for the visualization of adhesion assessment of a composite film
VL  - 227
SP  - 25
EP  - 28
DO  - 10.1016/j.matlet.2018.04.118
ER  - 

@article{
author = "Algellai, Ahmed A. and Vuksanović, Marija M. and Tomić, Nataša Z. and Marinković, Aleksandar D. and Obradović-Đuričić, Kosovka and Radojević, Vesna J. and Jančić-Heinemann, Radmila M.",
year = "2018",
abstract = "The objective of this study is to investigate quantitative assessment of the adhesion behavior of composite films onto a metallic surface. The composite films had UV cured Bis-GMA (Bisphenol A glycidylmethacrylate)/TEGDMA (triethylene glycol dimethacrylate) as matrix and ferrous oxide doped alumina (Al2O3 Fe) particles with two surface modifications, (3-methacryloxypropyltrimethoxysilane) (MEMO) and the vinyltris(2-methoxyethoxy) silane (VTMOEO), as reinforcement. Composites were made with 0.5, 1.5 and 3 wt% of alumina particles. Adhesion was evaluated using the micro hardness testing method. The contact angle was measured and compared to the adhesive parameter from micro hardness measurements. The form of the indent on the surface of the composite film was analyzed in order to correlate the indent morphology to the adhesion quality.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Materials Letters",
title = "The implementation of image analysis for the visualization of adhesion assessment of a composite film",
volume = "227",
pages = "25-28",
doi = "10.1016/j.matlet.2018.04.118"
}

Algellai, A. A., Vuksanović, M. M., Tomić, N. Z., Marinković, A. D., Obradović-Đuričić, K., Radojević, V. J.,& Jančić-Heinemann, R. M.. (2018). The implementation of image analysis for the visualization of adhesion assessment of a composite film. in Materials Letters
Elsevier Science Bv, Amsterdam., 227, 25-28.
https://doi.org/10.1016/j.matlet.2018.04.118

Algellai AA, Vuksanović MM, Tomić NZ, Marinković AD, Obradović-Đuričić K, Radojević VJ, Jančić-Heinemann RM. The implementation of image analysis for the visualization of adhesion assessment of a composite film. in Materials Letters. 2018;227:25-28.
doi:10.1016/j.matlet.2018.04.118 .

Algellai, Ahmed A., Vuksanović, Marija M., Tomić, Nataša Z., Marinković, Aleksandar D., Obradović-Đuričić, Kosovka, Radojević, Vesna J., Jančić-Heinemann, Radmila M., "The implementation of image analysis for the visualization of adhesion assessment of a composite film" in Materials Letters, 227 (2018):25-28,
https://doi.org/10.1016/j.matlet.2018.04.118 . .

TY  - JOUR
AU  - Perić, Tamara
AU  - Marković, Dejan
AU  - Petrović, Bojan
AU  - Radojević, Vesna J.
AU  - Todorović, Tatjana
AU  - Anđelski-Radičević, Biljana
AU  - Jančić-Heinemann, Radmila M.
AU  - Susić, Gordana
AU  - Peri'-Popadić, Aleksandra
AU  - Tomić-Spirić, Vesna
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1998
AB  - The purpose of this study was to evaluate efficacy of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) containing pastes among individuals with Sjogren's syndrome (SS). Thirty patients were randomised into three groups: CPP-ACP, CPP-ACFP, and 0.05 % NaF to be used two times a day during a 28-day experimental period. Saliva was analysed for flow rate, pH, buffering capacity and mineral concentrations. Dental plaque was examined for pH. Following the formation of artificial carious lesion, participants wore enamel slabs for an in situ remineralisation study. Remineralisation potential was examined using scanning electron microscope (SEM) and energy dispersive spectroscopic (EDS) technique. SE microphotographs were subsequently analysed for area, diameter, perimeter, roundness and the number of enamel defects and percentage of tooth surface affected by defects. At the end of the experimental period, a slight increase of salivary pH could have been observed. No differences in mineral composition of saliva were noted. The use of CPP-ACP and CPP-ACFP contributed to a significant rise of plaque pH. Image analysis revealed excessive reduction of defects' dimensions in the three experimental groups, and a decrease of the number of enamel defects in the CPP-ACP and CPP-ACFP groups. The EDS analysis did not show differences in Ca/P, Ca/O and P/O ratios in any of the treatment groups. CPP-ACP and CPP-ACFP hold promise as remineralising agents for patients with SS. Pastes containing CPP-ACP/CPP-ACFP show enhanced remineralisation potential compared with NaF mouthrinse in patients with SS.
PB  - Springer Heidelberg, Heidelberg
T2  - Clinical Oral Investigations
T1  - Efficacy of pastes containing CPP-ACP and CPP-ACFP in patients with Sjogren's syndrome
VL  - 19
IS  - 9
SP  - 2153
EP  - 2165
DO  - 10.1007/s00784-015-1444-1
ER  - 

@article{
author = "Perić, Tamara and Marković, Dejan and Petrović, Bojan and Radojević, Vesna J. and Todorović, Tatjana and Anđelski-Radičević, Biljana and Jančić-Heinemann, Radmila M. and Susić, Gordana and Peri'-Popadić, Aleksandra and Tomić-Spirić, Vesna",
year = "2015",
abstract = "The purpose of this study was to evaluate efficacy of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) containing pastes among individuals with Sjogren's syndrome (SS). Thirty patients were randomised into three groups: CPP-ACP, CPP-ACFP, and 0.05 % NaF to be used two times a day during a 28-day experimental period. Saliva was analysed for flow rate, pH, buffering capacity and mineral concentrations. Dental plaque was examined for pH. Following the formation of artificial carious lesion, participants wore enamel slabs for an in situ remineralisation study. Remineralisation potential was examined using scanning electron microscope (SEM) and energy dispersive spectroscopic (EDS) technique. SE microphotographs were subsequently analysed for area, diameter, perimeter, roundness and the number of enamel defects and percentage of tooth surface affected by defects. At the end of the experimental period, a slight increase of salivary pH could have been observed. No differences in mineral composition of saliva were noted. The use of CPP-ACP and CPP-ACFP contributed to a significant rise of plaque pH. Image analysis revealed excessive reduction of defects' dimensions in the three experimental groups, and a decrease of the number of enamel defects in the CPP-ACP and CPP-ACFP groups. The EDS analysis did not show differences in Ca/P, Ca/O and P/O ratios in any of the treatment groups. CPP-ACP and CPP-ACFP hold promise as remineralising agents for patients with SS. Pastes containing CPP-ACP/CPP-ACFP show enhanced remineralisation potential compared with NaF mouthrinse in patients with SS.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Clinical Oral Investigations",
title = "Efficacy of pastes containing CPP-ACP and CPP-ACFP in patients with Sjogren's syndrome",
volume = "19",
number = "9",
pages = "2153-2165",
doi = "10.1007/s00784-015-1444-1"
}

Perić, T., Marković, D., Petrović, B., Radojević, V. J., Todorović, T., Anđelski-Radičević, B., Jančić-Heinemann, R. M., Susić, G., Peri'-Popadić, A.,& Tomić-Spirić, V.. (2015). Efficacy of pastes containing CPP-ACP and CPP-ACFP in patients with Sjogren's syndrome. in Clinical Oral Investigations
Springer Heidelberg, Heidelberg., 19(9), 2153-2165.
https://doi.org/10.1007/s00784-015-1444-1

Perić T, Marković D, Petrović B, Radojević VJ, Todorović T, Anđelski-Radičević B, Jančić-Heinemann RM, Susić G, Peri'-Popadić A, Tomić-Spirić V. Efficacy of pastes containing CPP-ACP and CPP-ACFP in patients with Sjogren's syndrome. in Clinical Oral Investigations. 2015;19(9):2153-2165.
doi:10.1007/s00784-015-1444-1 .

Perić, Tamara, Marković, Dejan, Petrović, Bojan, Radojević, Vesna J., Todorović, Tatjana, Anđelski-Radičević, Biljana, Jančić-Heinemann, Radmila M., Susić, Gordana, Peri'-Popadić, Aleksandra, Tomić-Spirić, Vesna, "Efficacy of pastes containing CPP-ACP and CPP-ACFP in patients with Sjogren's syndrome" in Clinical Oral Investigations, 19, no. 9 (2015):2153-2165,
https://doi.org/10.1007/s00784-015-1444-1 . .

TY  - JOUR
AU  - Perić, Tamara
AU  - Marković, Dejan
AU  - Radojević, Vesna J.
AU  - Jančić-Heinemann, Radmila M.
AU  - Petrović, Bojan
AU  - Lamovec, Jelena S.
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1893
AB  - Purpose: The purpose of the study was to evaluate the surface characteristics of demineralized enamel after treatment with pastes containing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) or casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) and to compare their efficacy with that of 0.05% NaF. Methods: Following formation of the artificial carious lesion, enamel slabs were divided into 4 groups (CPP-ACP, CPP-ACFP, 0.05% NaF and control) and submitted to a chemical caries model. Remineralization potential was examined using scanning electron microscope, energy-dispersive spectroscopy (EDS) and microhardness test. Scanning electron microphotographs were analyzed for area, minimal, maximal and mean diameter, perimeter, roundness and number of enamel defects and percentage of tooth surface affected by defects. Results: Treatment with 0.05% NaF partly reduced the appearance of enamel defects when compared with irregular demineralized enamel. Treatment with CPP-ACP or CPP-ACFP resulted in occlusion of defects which produced more flattened enamel surface. Image analysis revealed reduction of the dimensions of the defects in the 3 experimental groups. Treatment with CPP-ACFP decreased the number of enamel defects when compared with demineralized enamel. The EDS analysis did not show differences in Ca/O, P/O and Ca/P ratios between the groups (P>0.05). Microhardness test revealed significant effects of CPP-ACP and CPP-ACFP (P lt 0.05). Conclusions: Pastes containing CPP-ACP or CPP-ACFP showed potential to remineralize enamel surface lesions.
PB  - Sage Publications Ltd, London
T2  - Journal of Applied Biomaterials & Functional Materials
T1  - Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel
VL  - 12
IS  - 3
SP  - 234
EP  - 239
DO  - 10.5301/jabfm.5000194
ER  - 

@article{
author = "Perić, Tamara and Marković, Dejan and Radojević, Vesna J. and Jančić-Heinemann, Radmila M. and Petrović, Bojan and Lamovec, Jelena S.",
year = "2014",
abstract = "Purpose: The purpose of the study was to evaluate the surface characteristics of demineralized enamel after treatment with pastes containing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) or casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) and to compare their efficacy with that of 0.05% NaF. Methods: Following formation of the artificial carious lesion, enamel slabs were divided into 4 groups (CPP-ACP, CPP-ACFP, 0.05% NaF and control) and submitted to a chemical caries model. Remineralization potential was examined using scanning electron microscope, energy-dispersive spectroscopy (EDS) and microhardness test. Scanning electron microphotographs were analyzed for area, minimal, maximal and mean diameter, perimeter, roundness and number of enamel defects and percentage of tooth surface affected by defects. Results: Treatment with 0.05% NaF partly reduced the appearance of enamel defects when compared with irregular demineralized enamel. Treatment with CPP-ACP or CPP-ACFP resulted in occlusion of defects which produced more flattened enamel surface. Image analysis revealed reduction of the dimensions of the defects in the 3 experimental groups. Treatment with CPP-ACFP decreased the number of enamel defects when compared with demineralized enamel. The EDS analysis did not show differences in Ca/O, P/O and Ca/P ratios between the groups (P>0.05). Microhardness test revealed significant effects of CPP-ACP and CPP-ACFP (P lt 0.05). Conclusions: Pastes containing CPP-ACP or CPP-ACFP showed potential to remineralize enamel surface lesions.",
publisher = "Sage Publications Ltd, London",
journal = "Journal of Applied Biomaterials & Functional Materials",
title = "Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel",
volume = "12",
number = "3",
pages = "234-239",
doi = "10.5301/jabfm.5000194"
}

Perić, T., Marković, D., Radojević, V. J., Jančić-Heinemann, R. M., Petrović, B.,& Lamovec, J. S.. (2014). Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel. in Journal of Applied Biomaterials & Functional Materials
Sage Publications Ltd, London., 12(3), 234-239.
https://doi.org/10.5301/jabfm.5000194

Perić T, Marković D, Radojević VJ, Jančić-Heinemann RM, Petrović B, Lamovec JS. Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel. in Journal of Applied Biomaterials & Functional Materials. 2014;12(3):234-239.
doi:10.5301/jabfm.5000194 .

Perić, Tamara, Marković, Dejan, Radojević, Vesna J., Jančić-Heinemann, Radmila M., Petrović, Bojan, Lamovec, Jelena S., "Influence of pastes containing casein phosphopeptide-amorphous calcium phosphate on surface of demineralized enamel" in Journal of Applied Biomaterials & Functional Materials, 12, no. 3 (2014):234-239,
https://doi.org/10.5301/jabfm.5000194 . .

TY  - JOUR
AU  - Ben Hasan, Somaya Ahmed
AU  - Dimitrijević, Marija M.
AU  - Kojović, Aleksandar
AU  - Stojanović, Dušica B.
AU  - Obradović-Đuričić, Kosovka
AU  - Jančić-Heinemann, Radmila M.
AU  - Aleksić, Radoslav
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1885
AB  - Composites with the addition of alumina nanofillers show improvement in mechanical properties.Poly(methyl methacrylate), PMMA, was used as a matrix and two different types of nanofillers having extremely different shapes were added into the matrix to form the composites. The reinforcements were based on alumina nanoparticles having either a spherical shape or whiskers with a length to diameter ratio of 100. The influence of the size and shape of the alumina fillers and the loading on the mechanical properties of the prepared composite were studied using nanoindentation measurements and dynamic mechanical analysis. It was observed that both alumina whiskers and spherical alumina nanoparticles added in the PMMA matrix improved the mechanical properties of the composites, but the improvement was significantly higher with reinforcement by alumina whiskers. The concentration of the reinforcing spherical alumina nanoparticles and alumina whiskers in the PMMA matrix varied up to 5 wt. %. The best performance was obtained by the addition of 3 wt. % of alumina whiskers in the PMMA matrix in terms of the mechanical properties of the obtained composite.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - The effect of the size and shape of alumina nanofillers on the mechanical behavior of PMMA matrix composites
VL  - 79
IS  - 10
SP  - 1295
EP  - 1307
DO  - 10.2298/JSC140121035B
ER  - 

@article{
author = "Ben Hasan, Somaya Ahmed and Dimitrijević, Marija M. and Kojović, Aleksandar and Stojanović, Dušica B. and Obradović-Đuričić, Kosovka and Jančić-Heinemann, Radmila M. and Aleksić, Radoslav",
year = "2014",
abstract = "Composites with the addition of alumina nanofillers show improvement in mechanical properties.Poly(methyl methacrylate), PMMA, was used as a matrix and two different types of nanofillers having extremely different shapes were added into the matrix to form the composites. The reinforcements were based on alumina nanoparticles having either a spherical shape or whiskers with a length to diameter ratio of 100. The influence of the size and shape of the alumina fillers and the loading on the mechanical properties of the prepared composite were studied using nanoindentation measurements and dynamic mechanical analysis. It was observed that both alumina whiskers and spherical alumina nanoparticles added in the PMMA matrix improved the mechanical properties of the composites, but the improvement was significantly higher with reinforcement by alumina whiskers. The concentration of the reinforcing spherical alumina nanoparticles and alumina whiskers in the PMMA matrix varied up to 5 wt. %. The best performance was obtained by the addition of 3 wt. % of alumina whiskers in the PMMA matrix in terms of the mechanical properties of the obtained composite.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "The effect of the size and shape of alumina nanofillers on the mechanical behavior of PMMA matrix composites",
volume = "79",
number = "10",
pages = "1295-1307",
doi = "10.2298/JSC140121035B"
}

Ben Hasan, S. A., Dimitrijević, M. M., Kojović, A., Stojanović, D. B., Obradović-Đuričić, K., Jančić-Heinemann, R. M.,& Aleksić, R.. (2014). The effect of the size and shape of alumina nanofillers on the mechanical behavior of PMMA matrix composites. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 79(10), 1295-1307.
https://doi.org/10.2298/JSC140121035B

Ben Hasan SA, Dimitrijević MM, Kojović A, Stojanović DB, Obradović-Đuričić K, Jančić-Heinemann RM, Aleksić R. The effect of the size and shape of alumina nanofillers on the mechanical behavior of PMMA matrix composites. in Journal of the Serbian Chemical Society. 2014;79(10):1295-1307.
doi:10.2298/JSC140121035B .

Ben Hasan, Somaya Ahmed, Dimitrijević, Marija M., Kojović, Aleksandar, Stojanović, Dušica B., Obradović-Đuričić, Kosovka, Jančić-Heinemann, Radmila M., Aleksić, Radoslav, "The effect of the size and shape of alumina nanofillers on the mechanical behavior of PMMA matrix composites" in Journal of the Serbian Chemical Society, 79, no. 10 (2014):1295-1307,
https://doi.org/10.2298/JSC140121035B . .