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The impact of electronic cigarette liquids on human gingival cell viability – a preliminary in vitro study

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Iwona Inkielewicz‑Stępniak, Aida Kusiak, Anna Wojtaszek‑Słomińska, Karolina Niska, Barbara Szkarłat



1/2016/XLIV s. 17–20
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DOI: https://doi.org/10.20883/df.2016.2

Fraza do cytowania: Inkielewicz‑Stępniak I., Kusiak A., Wojtaszek‑Słomińska A., Niska K., Szkarłat B. The impact of electronic cigarette liquids on human gingival cell viability – a preliminary in vitro study. Dental Forum. 2016;XLIV(1):17–20. DOI: https://doi.org/10.20883/df.2016.2.

Introduction. E-smoking is a new phenomenon, not only because of the opportunity for limiting or abandoning smoking, but also because it may become an introduction to traditional smoking, especially by young people, and addiction to nicotine. At the moment it is impossible to assess the advantages of e-smoking and the risk of undesirable effects, or even the toxic influence on the oral cavity tissues, due to the complexity of the phenomenon and the very few accurate clinical and laboratory studies. Aim. The aim of the study was the impact of electronic cigarette (EC) liquids on human gingival cell (HGF-1) viability in an in vitro study. Material and methods. Commercially available EC liquids with 11 and 24 mg/mL nicotine contents and different flavours were tested. Cytotoxicity on HGF-1 was evaluated after 24 and 48 h of exposure to EC liquids in concentrations of 0.1 and 1%. Results. Among all the tested EC liquids only Mint-flavoured ones have a harmful effect on HGF-1 cells in a time-dependent manner. No statistically significant difference was found between EC liquids with 11 and 24 mg/mL nicotine contents. Conclusions. Our data indicated that flavour additives in EC liquids may exert biological effects on oral cells.

Key words: electronic cigarettes, smoking, cytotoxicity.





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