Autor: Łukomska-Szymańska, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of resin composites modified with nanogold and nanosilver
Autorzy:: Sokołowski, J.
Szynkowska, M. I.
Kleczewska, J.
Kowalski, Z.
Sobczak-Kupiec, A.
Pawlaczyk, A.
Sokołowski, K.
Łukomska-Szymańska, M.
Powiązania:: https://bibliotekanauki.pl/articles/306218.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: anogold
nanosilver
composite
diametral tensile strength
microhardness
ion release
light transmission
nanosrebro
kompozyty
mikrotwardość
transmisja światła
Opis:: Silver and gold have been used for centuries as antimicrobial agents. The aim of the study was to investigate diametral tensile strength, microhardness, ion release and light transmission of experimental resin composites. Flowable dental composite SDR (Dentsply, United Kingdom) was modified by nanogold, nanosilver and silica addition. The metal ion release, light transmission study, microhardness, Diametral Tensile Strength were evaluated. The experimental nanosilver-containing composites released significant amounts of Al, Si, Sr and Ba ions up to 30 days, and negligible silver ion amounts. Significant Ag ion release occurred in nanosilver- and nanogoldmodified composite. Resin composites modified with nanogold and nanosilver deposited on silica carrier exhibit lower light transmission and have opaque appearance. All experimental composites exhibited higher microhardness in comparison to non-modified resin composites. Diametral Tensile Strength of the experimental composites was comparable to the control group.
Źródło:: Acta of Bioengineering and Biomechanics; 2014, 16, 1; 51-61
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Comparative characteristics of endodontic drills
Autorzy:: Loska, S.
Basiaga, M.
Pochrząst, M.
Łukomska-Szymańska, M.
Walke, W.
Tyrlik-Held, J.
Powiązania:: https://bibliotekanauki.pl/articles/307518.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: nikiel
tytan
stop
Ni-Ti
biomateriały
endodontic instrument
rotary instrument
nickel
titanium
alloys
Mtwo files
Opis:: The work concerns the analysis of influence of the wear process of endodontic instruments on the mechanical and physico-chemical properties of the materials from which they are made. A detailed study of the microstructure, mechanical properties and corrosion resistance in the environment simulating work of the tool was conducted. The research was done for the new Mtwo endodontic files and after six times of use. In addition, the observations with a scanning electron microscope in order to reveal possible damage caused by the impact of a corrosive environment were carried out. The results showed that use of the tool by six times revealed damage at the edges of the blades and may cause a lack of continuity of the cutting line resulting in the uneven distribution of the resistive force which acts on the tool during operation.
Źródło:: Acta of Bioengineering and Biomechanics; 2015, 17, 3; 75-83
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Chemical passivation as a method of improving the electrochemical corrosion resistance of Co-Cr-based dental alloy
Autorzy:: Rylska, D.
Sokołowski, G.
Łukomska-Szymańska, M.
Powiązania:: https://bibliotekanauki.pl/articles/306992.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: odporność korozyjna
stop stomatologiczny
test elektrochemiczny
pasywacja chemiczna
corrosion resistance
dental alloys
electrochemical test
chemical passivation
Opis:: Purpose: The purpose of the study was to evaluate corrosion resistance of Wirobond C® alloy after chemical passivation treatment. Methods: The alloy surface undergone chemical passivation treatment in four different media. Corrosion studies were carried out by means of electrochemical methods in saline solution. Corrosion effects were determined using SEM. Results: The greatest increase in the alloy polarization resistance was observed for passive layer produced in Na2SO4 solution with graphite. The same layer caused the highest increase in corrosion current. Generally speaking, the alloy passivation in Na2SO4 solution with graphite caused a substantial improvement of the corrosion resistance. The sample after passivation in Na2SO4 solution without graphite, contrary to others, lost its protective properties along with successive anodic polarization cycles. The alloy passivation in Na3PO4 solution with graphite was the only one that caused a decrease in the alloy corrosion properties. The SEM studies of all samples after chemical passivation revealed no pit corrosion – in contrast to the sample without any modification. Conclusions: Every successive polarization cycle in anodic direction of pure Wirobond C® alloy enhances corrosion resistance shifting corrosion potential in the positive direction and decreasing corrosion current value. The chemical passivation in solutions with low pH values decreases susceptibility to electrochemical corrosion of Co-Cr dental alloy. The best protection against corrosion was obtained after chemical passivation of Wirobond C® in Na2SO4 solution with graphite. Passivation with Na2SO4 in solution of high pH does not cause an increase in corrosion resistance of WIROBOND C. Passivation process increases alloy resistance to pit corrosion.
Źródło:: Acta of Bioengineering and Biomechanics; 2017, 19, 2; 73-78
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analiza zużycia wierteł endodontycznych
Wear analysis of endodontic files
Autorzy:: Walke, W.
Paszenda, Z.
Kaczmarek, M.
Łukomska-Szymańska, M.
Kujawa, R.
Powiązania:: https://bibliotekanauki.pl/articles/286211.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: wiertła endodontyczne
leczenie kanałowe
twardość
endodontic instruments
root canal treatment
hardness
Źródło:: Engineering of Biomaterials; 2008, 11, no. 77-80; 41-43
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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