TY - JOUR AU - Néma, Viktória AU - Kunsági-Máté, Sándor AU - Őri, Zsuzsanna Emese AU - Kiss, Tamás AU - Szabó, Péter AU - Szalma, József AU - Fráter, Márk Tibor AU - Lempel, Edina TI - Relation between internal adaptation and degree of conversion of short-fiber reinforced resin composites applied in bulk or layered technique in deep MOD cavities JF - DENTAL MATERIALS J2 - DENT MATER PY - 2024 PG - 12 SN - 0109-5641 DO - 10.1016/j.dental.2024.02.013 UR - https://m2.mtmt.hu/api/publication/34575631 ID - 34575631 N1 - * Megosztott szerzőség LA - English DB - MTMT ER - TY - JOUR AU - Lempel, Edina AU - Szebeni, D AU - Őri, Zsuzsanna Emese AU - Kiss, T AU - Szalma, József AU - Lovász, Bálint Viktor AU - Kunsági-Máté, Sándor AU - Böddi, Katalin TI - The effect of high-irradiance rapid polymerization on degree of conversion, monomer elution, volumetric change and porosity of bulk-fill resin composites JF - DENTAL MATERIALS J2 - DENT MATER VL - 39 PY - 2023 IS - 4 SP - 442 EP - 453 PG - 12 SN - 0109-5641 DO - 10.1016/j.dental.2023.03.016 UR - https://m2.mtmt.hu/api/publication/33680296 ID - 33680296 N1 - Funding Agency and Grant Number: Hungarian Academy of Sciences; New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development and Innovation Fund, Hungary [UNKP-22-5]; [BO/713/20/5]; [UNKP-22-5-PTE-1733] Funding text: This work was supported by the Hungarian Academy of Sciences, Bolyai Janos Research Scholarship (BO/713/20/5) ; UNKP-22-5 New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development and Innovation Fund, Hungary (UNKP-22-5-PTE-1733) . AB - The purpose was to compare the degree of conversion (DC), monomer elution (ME), polymerization shrinkage (PS) and porosity of two addition-fragmentation chain transfer (AFCT) modified resin-based composites (RBC) light-cured with rapid- (RP), turbo- (TP) or conventional polymerization (CP) settings.Cylindrical samples (6-mm wide, 4-mm thick) were prepared from Tetric PowerFill (TPF) and Filtek One Bulk (FOB). Four groups were established according to the polymerization settings: 3s-RP, 5s-TP, 10s-CP and 20s-CP. Samples in 1 mm thickness with 20s-CP settings served as controls. The DC at the top and bottom surfaces was measured with micro-Raman spectroscopy. ME was detected with high-performance liquid chromatography. PS and porosity were analyzed by micro-computed tomography. ANOVA and Tukey's post-hoc test, multivariate analysis and partial eta-squared statistics were used to analyze the data (p < 0.05).FOB showed higher DC values (61.5-77.5 %) at the top compared to TPF (43.5-67.8 %). At the bottom TPF samples achieved higher DCs (39.9-58.5 %) than FOB (18.21-66.18 %). Extending the curing time increased DC (except the top of FOB) and decreased ME. BisGMA release was the highest among the detected monomers from both RBCs. The amount was three-fold more from TPF. The factor Material and Exposure significantly influenced DC and ME. PS (1.8-2.5 %) did not differ among the groups and RBCs except for the lowest value of TPF cured with the 3s_RP setting (p = 0.03). FOB showed 4.5-fold lower porosity (p < 0.001). Significantly higher pore volume was detected after polymerization in 3s_RP (p < 0.001).High-irradiance rapid 3-s curing of AFCT modified RBCs resulted in inferior results for some important material properties. A longer exposure time is recommended in a clinical situation. LA - English DB - MTMT ER - TY - JOUR AU - Kincses, Dóra AU - Böddi, Katalin AU - Őri, Zsuzsanna Emese AU - Lovász, Bálint Viktor AU - Jeges, Sára AU - Szalma, József AU - Kunsági-Máté, Sándor AU - Lempel, Edina TI - Pre-Heating Effect on Monomer Elution and Degree of Conversion of Contemporary and Thermoviscous Bulk-Fill Resin-Based Dental Composites JF - POLYMERS J2 - POLYMERS-BASEL VL - 13 PY - 2021 IS - 20 PG - 20 SN - 2073-4360 DO - 10.3390/polym13203599 UR - https://m2.mtmt.hu/api/publication/32468144 ID - 32468144 N1 - Funding Agency and Grant Number: Bolyai Janos Research Scholarship [BO/713/20/5]; New National Excellence Program of the Ministry for Innovation and Technology [UNKP-20-5, UNKP-21-5-PTE-1353]; [PTE-AOK-KA-2020/24]; [PTE-AOK-KA-2020/29]; [TKP2020-IKA-08]; [EFOP-3.6.1.-16-2016-00004] Funding text: This research was funded by the Bolyai Janos Research Scholarship (BO/713/20/5); the UNKP-20-5 New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development, and Innovation Fund (UNKP-21-5-PTE-1353); PTE-AOK-KA-2020/24 and PTE-AOK-KA-2020/29. The work was also supported by the TKP2020-IKA-08 and EFOP-3.6.1.-16-2016-00004 grants. AB - Detection of unreacted monomers from pre-heated resin-based dental composites (RBC) is not a well-investigated topic so far. The objectives were to determine the temperature changes during the application and polymerization, the degree of conversion (DC) and unreacted monomer elution of room temperature (RT), and pre-heated thermoviscous [VisCalor Bulk(VCB)] and high-viscosity full-body contemporary [Filtek One Bulk(FOB)] bulk-fill RBCs. The RBCs' temperatures during the sample preparation were recorded with a K-type thermocouple. The DC at the top and bottom was measured with micro-Raman spectroscopy and the amounts of eluted BisGMA, UDMA, DDMA, and TEGDMA were assessed with High-Performance Liquid Chromatography. The temperatures of the pre-heated RBCs decreased rapidly during the manipulation phase. The temperature rise during photopolymerization reflects the bottom DCs. The differences in DC% between the top and the bottom were significant. RT VCB had a lower DC% compared to FOB. Pre-heating did not influence the DC, except on the bottom surface of FOB where a significant decrease was measured. Pre-heating significantly decreased the elution of BisGMA, UDMA, DDMA in the case of FOB, meanwhile, it had no effect on monomer release from VCB, except TEGDMA, which elution was decreased. In comparison, RBC composition had a stronger influence on DC and monomer elution, than pre-cure temperature. LA - English DB - MTMT ER - TY - JOUR AU - Lempel, Edina AU - Őri, Zsuzsanna Emese AU - Kincses, Dóra AU - Lovász, Bálint Viktor AU - Kunsági-Máté, Sándor AU - Szalma, József TI - Degree of conversion and in vitro temperature rise of pulp chamber during polymerization of flowable and sculptable conventional, bulk-fill and short-fibre reinforced resin composites JF - DENTAL MATERIALS J2 - DENT MATER VL - 37 PY - 2021 IS - 6 SP - 983 EP - 997 PG - 15 SN - 0109-5641 DO - 10.1016/j.dental.2021.02.013 UR - https://m2.mtmt.hu/api/publication/31890000 ID - 31890000 N1 - Funding Agency and Grant Number: Bolyai Janos Research Scholarship [BO/713/20/5]; UNKP-20-5 New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development and Innovation Fund [UNKP-20-5-PTE-615]; [PTE-AOK-KA-2020/24]; [GINOP2.3.2-15-2016-00049] Funding text: This work was supported by the Bolyai Janos Research Scholarship (BO/713/20/5); the UNKP-20-5 New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development and Innovation Fund (UNKP-20-5-PTE-615), PTE-AOK-KA-2020/24 and GINOP2.3.2-15-2016-00049 Research Grant. LA - English DB - MTMT ER - TY - THES AU - Őri, Zsuzsanna Emese TI - Újszerű amperometriás méréstechnika fejlesztése célszerűen módosított elektródokkal működő hatékony módszerek kidolgozására PY - 2020 SP - 122 DO - 10.15170/PTE.2021.001 UR - https://m2.mtmt.hu/api/publication/31868088 ID - 31868088 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Lempel, Edina AU - Őri, Zsuzsanna Emese AU - Szalma, József AU - Lovász, Bálint Viktor AU - Szilyné Kiss, Adél AU - Tóth, Ákos AU - Kunsági-Máté, Sándor TI - Effect of exposure time and pre-heating on the conversion degree of conventional, bulk-fill, fiber reinforced and polyacid-modified resin composites JF - DENTAL MATERIALS J2 - DENT MATER VL - 35 ET - 0 PY - 2019 IS - 2 SP - 217 EP - 228 PG - 12 SN - 0109-5641 DO - 10.1016/j.dental.2018.11.017 UR - https://m2.mtmt.hu/api/publication/30332292 ID - 30332292 AB - To determine the degree of conversion (DC) of different type of resin-based composites (RBC) in eight-millimeter-deep clinically relevant molds, and investigate the influence of exposure time and pre-heating on DC.Two-millimeter-thick samples of conventional sculptable [FiltekZ250 (FZ)], flowable [Filtek Ultimate Flow (FUF)] and polyacid-modified [Twinky Star Flow (TS)] RBCs, and four-millimeter-thick samples of flowable bulk-fill [Filtek Bulk Fill Flow (FBF), Surefil SDR (SDR)] and sculptable fibre-reinforced [EverX Posterior (EX)] RBCs were prepared in an eight-millimeter-deep mold. The RBCs temperature was pre-set to 25, 35 and 55°C. The RBCs were photopolymerized with the recommended and its double exposure time. The DC at the top and bottom was measured with micro-Raman spectroscopy. Data were analyzed with ANOVA and Scheffe post-hoc test (p<0.05).The differences in DC% between the top/bottom and the recommended/extended exposure time were significant for the materials, except SDR (64.5/63.0% and 67.4/63.0%). FUF (69.0% and 53.4%) and TS (64.9% and 60.9%) in 2mm provided higher DC% at the top and bottom with the recommended curing time, compared to the other materials, except SDR. Pre-heating had negative effect on DC at the bottom in flowable RBCs (FUF: 48.9%, FBF: 36.7%, SDR: 43%, TS: 54.7%). Pre-heating to 55 °C significantly increased the DC% in fibre-reinforced RBC (75.0% at the top, 64.7% at the bottom).Increased exposure time improves the DC for each material. Among bulk-fills, only SDR performed similarly, compared to the two-millimeter-thick flowable RBCs. Pre-heating of low-viscosity RBCs decreased the DC% at the bottom. Pre-heating of fibre-reinforced RBC to 55°C increased the DC% at a higher rate than the extended curing time. LA - English DB - MTMT ER - TY - JOUR AU - Izquierdo, J AU - Fernández-Pérez, B M AU - Filotás, Dániel AU - Őri, Zsuzsanna Emese AU - Kiss, András AU - Martín-Gómez, R T AU - Nagy, Lívia AU - Nagy, Géza AU - Souto, R M TI - Imaging of Concentration Distributions and Hydrogen Evolution on Corroding Magnesium Exposed to Aqueous Environments Using Scanning Electrochemical Microscopy JF - ELECTROANALYSIS J2 - ELECTROANAL VL - 28 PY - 2016 IS - 10 SP - 2354 EP - 2366 PG - 13 SN - 1040-0397 DO - 10.1002/elan.201600265 UR - https://m2.mtmt.hu/api/publication/3148446 ID - 3148446 N1 - Funding Agency and Grant Number: Spanish Ministry of Economy and Competitiveness (MINECO, Madrid); European Regional Development Fund (Brussels, Belgium) [CTQ2012-36787]; University of La Laguna; University of Pecs [SROP-4.2.2.D-15/1/Konv-2015-0015] Funding text: Financial support by the Spanish Ministry of Economy and Competitiveness (MINECO, Madrid) and the European Regional Development Fund (Brussels, Belgium), under grant CTQ2012-36787 is gratefully acknowledged. B. M. F.-P. thanks the University of La Laguna for a mobility grant to Pecs. The Hungarian Team wishes to thank for the support of the "Environmental industry related innovative trans-and interdisciplinary research team development" in the University of Pecs knowledge base, the SROP-4.2.2.D-15/1/Konv-2015-0015 project. LA - English DB - MTMT ER - TY - JOUR AU - Őri, Zsuzsanna Emese AU - Nagy, Lívia AU - Kiss, László AU - Kovács, Barna AU - Nagy, Géza TI - Direct Voltammetric Determination of Ascorbic Acid in Natural Paprika Fruits Without Sample Pretreatment JF - ELECTROANALYSIS J2 - ELECTROANAL VL - 27 PY - 2015 IS - 3 SP - 808 EP - 816 PG - 9 SN - 1040-0397 DO - 10.1002/elan.201400603 UR - https://m2.mtmt.hu/api/publication/2848643 ID - 2848643 N1 - Export Date: 27 January 2024; CODEN: ELANE LA - English DB - MTMT ER - TY - CONF AU - Őri, Zsuzsanna Emese AU - Nagy, Lívia AU - Nagy, Géza TI - Towards direct voltammetric determination of Ascorbic acid in natural pepper fruits without sample treatment T2 - 15th International Conference on Electroanalysis PY - 2014 UR - https://m2.mtmt.hu/api/publication/2852455 ID - 2852455 LA - English DB - MTMT ER - TY - JOUR AU - Őri, Zsuzsanna Emese AU - Kiss, András AU - Anton, Alexandru Ciucu AU - Constantin, Mihailciucc AU - Cristian, Dragos Stefanescu AU - Nagy, Lívia AU - Nagy, Géza TI - Sensitivity enhancement of a “bananatrode” biosensor for dopamine based on SECM studies inside its reaction layer JF - SENSORS AND ACTUATORS B-CHEMICAL J2 - SENSOR ACTUAT B CHEM VL - 190 PY - 2014 SP - 149 EP - 156 PG - 8 SN - 0925-4005 DO - 10.1016/j.snb.2013.08.063 UR - https://m2.mtmt.hu/api/publication/2405921 ID - 2405921 LA - English DB - MTMT ER -