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Resurfacing can be ablative, which vaporizes tissue and creates wounds, or non-ablative which keeps the skin intact. Laser resurfacing is usually done with a 2940 nm Er:YAG laser or a 10,600 nm CO 2 laser. Complete resurfacing was first done with a CO 2 laser. Both erbium and CO 2 are used to treat deep rhytides, sun damage and age spots.
Laser ablation or photoablation (also called laser blasting [1] [2] [3]) is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates .
An Nd:YAG laser drills a hole through a block of nitrile. The intense burst of infrared radiation ablates the highly absorbing rubber, releasing an eruption of plasma. Laser ablation is greatly affected by the nature of the material and its ability to absorb energy, therefore the wavelength of the ablation laser should have a minimum absorption ...
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Carbon dioxide lasers, erbium lasers, and combinations of these are examples of the types of ablative lasers that are used in the resurfacing process. [25] Fractional ablative laser resurfacing procedure. The top outer layer of the skin is removed by the laser, which simultaneously heats the layer of skin lying beneath it.
Erbium-YAG lasers have been used for laser resurfacing of human skin. [2] Example uses include treating acne scarring , deep rhytides , and melasma . In addition to being absorbed by water, the output of Er:YAG lasers is also absorbed by hydroxyapatite , which makes it a good laser for cutting bone as well as soft tissue.
Dermabrasion is a mechanical surgical skin planing method which has remained popular partially because it may afford an overall lower cost and may provide similar or superior results as newer laser methods for certain skin conditions.
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