Low-Level Laser Therapy (LLLT) in Wound Healing

Wound bed preparation plays a major part in wound healing. Low-level lasers were first introduced by Endre Mester in 1983. They are low-power, nonthermal, non-invasive lasers involving red and near-infrared light. It acts by photobiomodulation at the cellular level affecting various biological processes that stimulate and accelerate wound healing, tissue repair and regeneration. LLLT also has an anti-inflammatory, anti-oedema and analgesic effect on tissues. It has a biphasic dose-response relationship, promoting wound healing when given at lower dosimetric parameters while can be harmful or have no effect at higher levels. LLLT is an effective tool as an adjuvant for acute/chronic wounds, non-healing ulcers, musculoskeletal disorders, skin rejuvenation, hair growth and pain management.