Treatments with laser in health care

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	Laser Treatments What is Laser? LASER is an acronym that stands for "Light Amplification by Stimulated Emission of Radiation". Every laser emits light (a source of heat) as its means of treating varying skin conditions. The color and the power of the light source differentiates one laser from another. There are almost as many colors, light sources and names available. In medicine, lasers are used as precise scalpels. They are useful in controlling bleeding, because their beam cauterizes or burns as it cuts. Lasers may be directed through fiberoptic channels that allow: fine control and accurate aim using computer assisted delivery and access to places that traditional surgical instruments cannot easily probe Lasers are used to treat a variety of medical conditions that include: skin conditions such as mole, wart, birthmark, and tattoo removal wrinkles and sun-damaged skin acne scars and other types of scars eye disorders, such as retinal detachments and macular degeneration the removal of cancerous and benign lesions poikiloderma (extra pigmentation of the skin removal of unwanted hair and cosmetic dentistry A wide variety of lasers are used in health care facilities. The type of laser depends on the purpose of use. Lasers can be used as knives or probes and for imaging techniques. For example, laser knives can make cuts that do not bleed. They can be used to smooth skin wrinkles or remove skin moles, cysts, tattoos, spider veins, and so forth. Two types of lasers are used for cosmetic skin treatment: An ablative laser is used to remove aged, damaged skin while tightening and refreshing healthy. These lasers vaporize the surface layers of the skin. Because the lasers form wounds that must heal completely, these treatments come with serious downtime and meticulous post-treatment care. Upon healing, a fresh, new, healthy layer of skin is revealed. A non-ablative laser is used to heat a certain color area of the skin. Leaving the upper layers of the skin intact, these lasers generate heat in the dermis to stimulate collagen production and improve the texture and tone of the skin. Laser Hair Removal One of the newest and most popular uses for lasers in dermatology is for hair removal. Lasers have distinct advantages compared to conventional hair removal techniques, such as, waxing, plucking, and shaving, and have been successfully used to remove unwanted body hair for the past few years. Laser Treatment of Vascular Lesions Vascular lesions are usually due to the abnormal widening of small blood vessels, known as capillaries. Dilated Capillaries (often called broken capillaries, broken veins or broken blood vessels) are commonly recognized on the cheeks, nose, and legs as threadlike red or pink lines that are smaller than spider veins. Laser is the safest and most effective technique to remove dilated capillaries. In addition, other commonly occurring vascular lesions can also be treated with the laser, including cherry hemangiomas, spider angiomas, rosacea, and sun damage. Less common conditions can also be treated, including port wine stains. Laser Tattoo Removal The introduction of lasers for tattoo removal has been significant because all previous methods have been associated with significant scarring. Lasers are usually able to remove tattoos with minimal, if any, scarring. Tattoo removal is accomplished with specialized lasers that attempt to remove the pigment without damaging any of the overlying skin. Because laser light is color specific, each laser only treats one color. Therefore, a multi-colored tattoo may require as many different lasers as there are ink colors within the tattoo. Laser Skin Resurfacing Resurfacing has been used for decades to improve facial skin texture and color. Treatment options include: lotions and creams, microdermabrasion, and chemical solutions. Within the past decade, lasers have been used as an additional method to provide resurfacing. Teeth Whitening Increasingly dental practitioners are recognising the effectiveness of dental laser systems in providing a more effective whitening solution to traditional methods. The treatment is very similar to in-office whitening in that laser treatment also requires the application of a hydrogen peroxide gel. The gel contains a dye that absorbs the light emitted by the laser in order to increase the reactivity of the bleaching composition. The dental laser emits the laser energy required in order to excite the hydrogen peroxide molecules. This creates an oxidising effect, breaking down the gel into oxygen free radicals and water. The oxidising agent then reacts with the stain in the tooth reducing the discolouration and thereby creating the desired whitening. The overall effect is an immediate whitening of the treated area which has been shown to last longer than traditional bleaching methods. Another advantage is that difficult to remove stains can be specifically targeted without having to expose the whole mouth. Laser whitening is pain-free, quick and is not invasive.