Laser lights at different wavelengths and power settings have the ability to affect things in the human body in various ways. Nd:YAG (PerioLase MVP-7TM) is a laser that has been shown to selectively kill bacteria that cause gum disease, without damaging patient’s own cells. Because the laser tips are usually a lot smaller than the dental instruments used to remove debris under the gums, Houston laser gum surgery allows a more thorough treatment of diseased root surfaces, leading to greater rate of successful therapy.