Krzysztof Mroczka

Dr. Krzysztof Mroczka

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2018 in Materials Letters
Verified
Journal Article
Closed access
JDJuliusz Dąbrowa
Juliusz Dąbrowa
MSMirosław Stygar
Mirosław Stygar
AMAndrzej Mikuła
Andrzej Mikuła
AKArkadiusz Knapik
Arkadiusz Knapik
KMKrzysztof Mroczka
Krzysztof Mroczka
MMManfred Martin
Manfred Martin

1 May 2017 in Intermetallics
Verified
Journal Article
Closed access
JDJuliusz Dąbrowa
Juliusz Dąbrowa
GCGrzegorz Cieślak
Grzegorz Cieślak
MSMirosław Stygar
Mirosław Stygar
KMKrzysztof Mroczka
Krzysztof Mroczka
KBKatarzyna Berent
Katarzyna Berent
Marek DanielewskiMarek Danielewski
Marek Danielewski

1 April 2020 in Journal of the European Ceramic Society
Verified
Journal Article
Closed access
MSMirosław Stygar
Mirosław Stygar
JDJuliusz Dąbrowa
Juliusz Dąbrowa
MMMaciej Moździerz
Maciej Moździerz
MZMarek Zajusz
Marek Zajusz
WSWojciech Skubida
Wojciech Skubida
Marek DanielewskiMarek Danielewski
Marek Danielewski

1 November 2019 in Journal of the European Ceramic Society
Verified
Journal Article
Closed access
ZGZ. Grzesik
Z. Grzesik
GSGrzegorz Smola
Grzegorz Smola
MSMirosław Stygar
Mirosław Stygar
JDJuliusz Dąbrowa
Juliusz Dąbrowa
MZMarek Zajusz
Marek Zajusz
Marek DanielewskiMarek Danielewski
Marek Danielewski

13 November 2018 in Photomedicine and Laser Surgery
Verified
Journal Article
Closed access
Kinga Grzech-LeśniakKinga Grzech-Leśniak
Kinga Grzech-Leśniak
Jacek MatysJacek Matys
Jacek Matys
DŻDorota Żmuda-Stawowiak
Dorota Żmuda-Stawowiak
KMKrzysztof Mroczka
Krzysztof Mroczka
Marzena DominiakMarzena Dominiak
Marzena Dominiak
ASAnton Sculean
Anton Sculean
Objective: To evaluate the effects of bracket removal using an erbium laser on the pulp temperature and enamel surface. Background: Removal of orthodontic brackets with conventional debonding pliers may result in enamel cracks. To avoid damage to the enamel surface and effectively remove metal or ceramic brackets, different types of lasers, such as Nd:YAG, CO 2 , TM:YAP, diode laser, or Er:YAG, have been introduced for debonding. Materials and methods: A total of 55 brackets ( n = 55; 20 metal and 35 ceramic ones) were bonded to 55 caries-free premolars extracted for orthodontic indications. Brackets were irradiated with Er:YAG laser (Morita, Irvine, CA) with a wavelength of 2940 nm at a power of 3.4 W, energy 170 mJ, frequency 20 Hz, pulse duration 300 μs, tip diameter 0.8 mm, air/fluid cooling 3 mL/s, and time of irradiation: 6 sec. Debonding was made by scanning ( n = 15; 6 sec irradiation at distance of 2 mm from the bracket with an “S” shape movement) and circular ( n = 15; 6 sec irradiation at distance of 1 mm from the bracket) motion technique in ceramic brackets or the circular motion technique in metal brackets ( n = 15). The number of 10 nonirradiated teeth with ceramic ( n = 5) or metal brackets ( n = 5) was used as a control in SEM test and EDS analysis. The damage in tooth enamel surface and the calcium percentage were analyzed by means of scanning electron microscope (JEOL 6610LV, JEOL, Japan) and energy dispersive X-ray spectroscopy (EDS, Oxford, United Kingdom). Temperature changes in the pulp were measured by K-type thermocouple. Evaluation of the Adhesive Remnant Index (ARI) on the enamel surface of each tooth was examined after bracket debonding. Results: The scanning method has caused significantly lower temperature increase (mean: 0.83°C) compared with circular motion technique around the ceramic brackets (mean: 1.78°C; p = 0.0001) or the metal brackets (mean: 1.29°C; p = 0.015). ARI score showed no differences between the study groups ( p = 0.57). SEM analysis revealed no cracks on enamel surface after laser-assisted debonding in comparison with the control samples where cracks were found. EDS showed a higher mean percentage of the calcium (30.7–85.8%) for all test groups compared with control samples (mean: 7%; p = 0.0002). The amount of the calcium elements was higher for metal brackets in comparison with ceramic ones ( p = 0.0002). Conclusions: Er:YAG laser-assisted debonding causes a minor increase in the pulp temperature and reduced the risk of enamel damage compared with conventional bracket removal.

24 May 2019 in Journal of Prosthodontics
Verified
Journal Article
Closed access
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Kinga Grzech-LeśniakKinga Grzech-Leśniak
Kinga Grzech-Leśniak
Sompop BencharitSompop Bencharit
Sompop Bencharit
NDNishchal Dalal
Nishchal Dalal
KMKrzysztof Mroczka
Krzysztof Mroczka
JDJanina Golob Deeb
Janina Golob Deeb