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所在平台: Udemy |
课程主页: https://www.udemy.com/course/tempo-of-photobiomodulation/
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**课程总结：光生物调节在医学、牙科和兽医学中的应用** 本课程深入探讨了光生物调节（Photobiomodulation, PBM）这一非热性治疗方法，其利用激光或LED等光源，通过引发细胞氧化还原反应，达到减轻疼痛、促进组织愈合、降低炎症以及改善细胞和器官功能的效果。 课程内容涵盖了PBM在不同领域的具体应用，包括其定义、作用机制、优势、适应症和禁忌症。此外，课程还详细阐述了LED与激光、红光与蓝光激光之间的区别，重点分析了功率、光斑大小和功率密度上的差异。 课程还介绍了光在生物组织中的吸收和散射特性，特别是短波长（如蓝光）比长波长（如红光和近红外光）更容易被组织吸收和散射，而水在特定波长（>1100nm）下会强烈吸收红外光。 值得注意的是，PBM常用的红光和近红外光光子能量不足以破坏DNA分子键，因此不具备致癌性，但可能加速已存在的增殖过程。 最后，课程将展示如何将受损细胞转化为健康细胞。
Photobiomodulation is a non-thermal process that uses non-ionizing light sources (either the coherent light of lasers or the non-coherent light of LEDs) in order to reduce the pain, increase tissue healing , decrease inflammation and this will improve the function of cells which will improve the function of tissues and organs ) to trigger redox biology-chemical reactions in which the oxidation state of atoms is changed, normally through the transfer of electrons between chemical species. Regarding the effect of Photobiomodulation in different Medical ,Dental and Veterinarian fields; we will highlight the definition, mechanism of action, advantages, indications and contraindications of the process. We will give you an idea about the difference between LED Vs LASER and red Vs blue Lasers.The power of Lasers usually higher than LED while beam Size of Lasers Usually is smaller than LED. So Power Density of Laser is much higher than LED. The absorption and scattering of light in tissues are both much higher in the blue region of the spectrum than the red, because the principle tissue chromophores (hemoglobin and melanin) have high absorption bands at shorter wavelengths, tissue scattering of light is higher at shorter wavelengths, and furthermore water strongly absorbs infrared light at wavelengths greater than 1100-nm. Photons of the light usually used in the PBM (red, near infrared) have not enough energy to break the molecular chemical bonds of nucleic acids (DNA); therefore, they are not carcinogenic, but from a conceptual point of view could speed up proliferative processes underway. Finally we will demonstrate the idea of conversion of stress cells to healthy cells.
