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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 used for bone cutting, difficult tissue drilling in dentistry, and skin resurfacing. The Ho: YAG laser works for such orthopedic treatments as joint arthroscopies, in addition to for urologic lithotripsy and ophthalmologic procedures.

Wavelengths of common medical lasers (courtesy of Dr Albert Poet, Shore  - Download Scientific Diagram

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

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This method has prospective applications for treating lots of other types of growths. In PDT, a photoreactive drug called dihematoporphyrin is administered systemically.  Key Reference  collects in tumor cells at a substantially higher concentration than in typical cells. Laser light from red color lasers is then used to the growth website.

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Operation, When a laser is utilized in surgical treatment, there are three main control parameterspower in watts (set by the laser nurse); time of exposure (based on the speed of motion of the beam or tip); and area size (a boost or reduce in the location called by the laser light, controlled by the cosmetic surgeon in the field).

A change in power level alters the speed of cut. If the cosmetic surgeon is vaporizing or debulking tissue, the essential consideration is power density. Thus, the area size can be increased however the power is increased proportionately. Rather than constant usage of a lower level of power that can trigger thermal damage to surrounding tissue, the cosmetic surgeon may utilize a higher level of power on a pulsed setting.

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Setting tests, Laser settings can be evaluated on a damp tongue depressor blade before 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, with no point. A point indicates that the power density is too high.