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The heat risk during hardening of dental glass-ionomer cements using a light-curing

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Abstract

An use of a polymerization lamp to irradiate chemically hardened glass-ionomer materials may improve their properties and accelerate the setting time. However, an excessive increase in the temperature of a material poses a potential risk for the dental pulp. Maximum temperatures reported during irradiation of selected glass-ionomers have been determined in this paper for samples of sizes similar to those used in clinical practice. Three glass-ionomer materials used for filling dental cavities have been examined: GC Fuji VIII, GC Fuji Triage Pink, and GC Fuji Triage White. The LED Elipar lamp was used in the light-curing process. The temperature measurement on the outer surface of the samples was conducted with the use of the Thermovision®550 thermal imaging camera. The examined materials significantly differed in the maximum temperatures they reached, as well as the time they required to reach these temperatures. A statistically significant positive correlation of maximum temperature with the sample weight was observed for the GC Fuji Triage Pink material.

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Acknowledgements

Financial support from the National Science Centre over the course of the realization of the project ‘Preparation and characterisation of biocomposites based on nanoapatites for theranostic,’ no. UMO-2015/19/B/ST5/01330, is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Conservative Dentistry and Pedodontics, Wroclaw Medical University, Krakowska 26, 50-425, Wroclaw, Poland

    Maciej Dobrzynski, Katarzyna Herman, Katarzyna Fita & Malgorzata Kowalczyk-Zajac

  2. Dental Practice, Bartaska 2/22, 10-699, Olsztyn, Poland

    Ewelina Bryla

  3. Private Dental Clinic Maciej Kozlowski, Spokojna 23, 56-400, Olesnica, Poland

    Ewelina Bryla

  4. Faculty of Mechanical Engineering, Technical University of Wroclaw, Lukasiewicza 5, 50-371, Wroclaw, Poland

    Krzysztof Dudek

  5. Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida 44, 50-368, Wroclaw, Poland

    Maria Szymonowicz & Zbigniew Rybak

  6. Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38c, 51-630, Wroclaw, Poland

    Mariusz Korczynski

  7. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422, Wroclaw, Poland

    Rafal J. Wiglusz

Authors
  1. Maciej Dobrzynski
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  2. Katarzyna Herman
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  3. Ewelina Bryla
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  4. Katarzyna Fita
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  5. Krzysztof Dudek
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  6. Malgorzata Kowalczyk-Zajac
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  7. Maria Szymonowicz
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  8. Zbigniew Rybak
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  9. Mariusz Korczynski
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  10. Rafal J. Wiglusz
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Corresponding author

Correspondence to Rafal J. Wiglusz.

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Dobrzynski, M., Herman, K., Bryla, E. et al. The heat risk during hardening of dental glass-ionomer cements using a light-curing. J Therm Anal Calorim 135, 3123–3128 (2019). https://doi.org/10.1007/s10973-018-7504-4

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  • DOI: https://doi.org/10.1007/s10973-018-7504-4

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