Abstract: A method of treating diseased tissue while healing the wound using a diode laser which generates a beam of light having a wavelength in the visible portion of the electromagnetic spectrum (400 nm-700 nm) at a laser power of 0.001 to 12 watts, used with intermittent stops to control tissue temperature and biostimulate epithelial regeneration when used with or without substrates. A method of treating diseased tissue using a laser light in the green wavelength range (520-570 nm) at a laser power of 0.001 W to 5 W. A method of treating diseased tissue using a laser light in the IR wavelength range (700-1400 nm) at a laser power of 0.001 W to 5 W.