Original Article

The Effect of Cold Plasma and Low-Level Laser Therapy on Oral Fibroblast Proliferation

Abstract

Background: Wound healing is a complex physiological process involving multiple phases and cellular mechanisms that restore damaged tissue. The oral cavity presents unique challenges for wound healing due to the presence of microorganisms and the impact of various diseases and treatments. Recent advancements, including low-level laser therapy (LLLT) and cold plasma, offer promising approaches to enhance wound healing by promoting cell proliferation and reducing inflammation. This study aimed to investigate the effects of cold plasma and low-level 980nm laser on the growth of oral fibroblasts and compare their respective impacts on wound healing.

Methods: Human gingival fibroblasts were divided into nine study groups, including a control group. Two groups were exposed to low-level 980nm diode laser irradiation for 15 and 30 seconds, while six groups received cold plasma irradiation with helium gas at flow rates of 1.85, 2.78 and 5.56 cm3/s for the same durations. Fibroblast proliferation was evaluated on days 1, 3, and 5 after treatment using the MTT assay.

Results: The results showed that on the 5th day after irradiation, 30 seconds of 980 nm laser irradiation significantly increased fibroblast proliferation compared to the other groups. In contrast, 15 seconds of plasma irradiation at a flow rate of 1.85 cm3/s had the least effect on promoting fibroblast proliferation. On the 1st day after radiation, plasma irradiation at flow rates of 2.78 and 5.56 cm3/s exhibited a greater impact on fibroblast proliferation compared to the other five test groups.

Conclusion: The 980nm diode laser demonstrated a greater capacity to enhance the proliferation of oral fibroblasts compared to cold plasma using helium gas.

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IssueVol 6, No 2 (2023) QRcode
SectionOriginal Article
DOI https://doi.org/10.18502/igj.v6i2.16411
Keywords
Diode Laser Fibroblasts Low-level Laser Therapy Non-Thermal Atmospheric Pressure Plasma Wound Healing

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How to Cite
1.
Sharif H, Aghayan S. The Effect of Cold Plasma and Low-Level Laser Therapy on Oral Fibroblast Proliferation. Immunol Genet J. 2023;6(2):67-78.