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The Nd: YAG laser is a contact laser. It is used in stomach, gynecological, or urological surgical treatments performed through laparoscopes, endoscopes, or hysteroscopes. The Er: YAG laser is utilized for bone cutting, hard tissue drilling in dentistry, and skin resurfacing. The Ho: YAG laser is beneficial for such orthopedic treatments as joint arthroscopies, along with for urologic lithotripsy and ophthalmologic treatments.

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Ruby lasers can be used to remove tattoos. Argon and excimer lasers are utilized mostly to reshape the cornea in laser eye surgical treatments, although heart surgeons likewise use excimer lasers to carry out angioplasties. Copper vapor or dye lasers are utilized to deal with port-wine birthmarks. Tunable color lasers and argon lasers are frequently utilized to repair such cosmetic vascular problems as varicose or spider veins.

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This technique has prospective applications for dealing with numerous other types of growths. In PDT, a photoreactive drug called dihematoporphyrin is administered systemically. The drug collects in tumor cells at a significantly greater concentration than in regular cells. Laser light from red color lasers is then used to the tumor website.

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Operation, When a laser is used in surgery, there are 3 central control parameterspower in watts (set by the laser nurse); time of exposure (reliant on the speed of motion of the beam or pointer); and area size (a boost or reduce in the location gotten in touch with by the laser light, managed by the surgeon in the field).

A modification in power level changes the speed of cut. If the surgeon is vaporizing or debulking tissue, the crucial consideration is power density. Therefore, the spot size can be increased however the power is increased proportionately. Rather than continuous use of a lower level of power that can cause thermal damage to surrounding tissue, the cosmetic surgeon may use a higher level of power on a pulsed setting.

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Setting tests, Laser settings can be checked on a damp tongue depressor blade prior to they are used to vaporize tissue. Ideally, a 0. 1-second test shot will leave a scoop-shaped depression in the wood formed like a golf ball halve, without any point.  Additional Info  shows that the power density is too expensive.