Anti-inflammatory effect of non-thermal atmospheric pressure plasma for periodontitis treatment: in vitro pilot study

ABSTRACT

Purpose@#The purpose of this study was to evaluate the anti-inflammatory effects of non-thermal atmospheric pressure plasma (NTP) on human gingival fibroblasts (HGFs) for clinical application of periodontal treatment. @*Materials and Methods@#HGFs were treated with Porphyromonas gingivalis (Pg) lipopolysaccharide (LPS). Customized NTP device was developed for periodontal in vitro study. Cell viability was evaluated with cell counting kit-8. The levels of inflammatory cytokines, including interleukin (IL)-8 and 6, were determined by enzyme-linked immunosorbent assay. @*Results@#When NTP was applied, the cell viability did not change significantly, and there was no difference for 6 h and 24h. When Pg LPS was treated to HGFs, the secretion of IL-8 and IL-6 was increased compared to the control group. But when the NTP was applied, the secretion of them was significantly decreased. @*Conclusion@#NTP did not affect cell viability of HGFs. And it inhibited the LPS-induced production of IL-8 and IL-6.