Low Level Laser Therapy (LLLT) Mechanism of Action, Application and Laser Light Therapy Devices In Physical Therapy

Ahed Osama Ali; Fatima Mohammed Shakhir Najm; Zainab Emad Abd-ALKazem Muhammad; Hadeer Hisham Ali; Zahraa Alaa Fadl Allah Nahab

doi:10.52845/CMRO/2024/7-6-6

Ahed Osama Ali ⁽¹⁾ , Fatima Mohammed Shakhir Najm ⁽²⁾ , Zainab Emad Abd-ALKazem Muhammad ⁽³⁾ , Hadeer Hisham Ali ⁽⁴⁾ , Zahraa Alaa Fadl Allah Nahab ⁽⁵⁾

(1) University of Babylon - College of Science for Women - Department of Laser Physics , Iran, Islamic Republic of

(2) University of Babylon - College of Science for Women - Department of Laser Physics , Iran, Islamic Republic of

(3) University of Babylon - College of Science for Women - Department of Laser Physics , Iran, Islamic Republic of

(4) University of Babylon - College of Science for Women - Department of Laser Physics , Iran, Islamic Republic of

(5) University of Babylon - College of Science for Women - Department of Laser Physics , Iran, Islamic Republic of

https://doi.org/10.52845/CMRO/2024/7-6-6

Issue
Vol. 7 No. 06 (2024)

Keywords:

Biostimulation, Low-level laser therapy, Wound healing

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Abstract

"Light Amplification by Stimulated Emission of Radiation" is what the acronym "laser" stands for. Various light sources, such as light-emitting diodes, have entered the laser arena. A wide variety of red and near-infrared light waves are employed. The target tissues are affected differently by each wavelength. Research on low-level laser treatment (LLLT) is booming as a potential solution to the problems caused by high-dose lasers. A variety of cells in the body are directly bio-stimulated by low-level laser therapy. It has been found that low-level laser therapy (LLLT) can speed up the healing process for wounds and also stimulate bone cells, which means that bones can recover more quickly.

Stimulated emission of radiation is the process that produces laser light. Laser light has numerous distinguishing features, including great intensity, homogeneity, and the fact that it travels in a straight line, all of which contribute to its targeted interactions with biological tissues. Presenting a wide range of laser applications in pharmacy and medicine, this study also aims to describe the fundamentals of lasers and how they interact with tissues. The biostimulation effects of low-level laser therapy include an elevated core body temperature, enhanced blood circulation, and accelerated metabolic rate. Treatment with high-powered lasers causes photothermal effects. This tissue undergoes fotoablation and fotocoagulation when exposed to that particular wavelength of laser light. Lasers can be either continuously operating or releasing light pulses at a specific frequency. The laser's active centre can be made of a variety of materials, including solids, liquids, semiconductors, or gases. The medical and pharmaceutical fields are well-known for their extensive use of lasers. Many medical fields make use of lasers, including dermatology, ophthalmology, stomatology, laryngology, and neurology, due to their ability to reduce bleeding, make precise cuts, ensure improved visibility during operations, lessen pain, and speed up the healing process after injuries. The impact of laser biostimulation on the efficacy of pharmaceutical treatments.

A relatively new method for wound healing is low level laser therapy (LLLT). Current approaches for treating wounds with laser radiation and clinical concerns for various wound types are reviewed in this paper. We also quickly go over the hypothesised ways in which LLLT aids in the healing of wounds. Additional controlled trials are required to clarify the many stages of the healing process and objectively determine the influential parameters of LLLT, while numerous studies have improved our understanding of the laser healing process.

The effects of LLLT are still up for debate, despite numerous reports of positive results from in vitro studies, animal models, and randomised controlled human trials. Contrarily, more studies are required to determine whether periodontal therapy is effective.

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