In Vitro Wound Healing Improvement by Low-Level Laser Therapy Application in Cultured Gingival Fibroblasts
Photomicrographs showing human gingival fibroblast cultures seeded in 24-well plates after LLLT. The control group exhibits a large cell-free area on acrylic surface. The group irradiated with 0.5 J/cm² exhibits cell proliferation and migration, with consequent reduction of the “in vitro wound” size. The group irradiated with 3.0 J/cm² presented more intense cell proliferation and migration, resulting in almost complete closure of the “in vitro wound.”
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