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The sequential delivery of 595- and 1,064-nm-wavelength radiation with an interpulse delay suggests that the synergistic approach to laser therapy for facial telangiectasia is a superior method compared to standard single wavelength therapy.

Tattooing has been around since the early beginnings of modern civilization. The discovery of selective photothermolysis at last has made it possible to remove tattoos without leaving a scar. Q-switched neodymium: yttrium-aluminum-garnet, alexandrite, and ruby lasers with pulse durations in the nanosecond domain fulfill this need. Argon or cw-CO(2) lasers as well as intense pulsed light sources should not be used since they often produce significant scarring. This article provides an overview of current laser systems. Developments leading to new tattoo inks, feedback systems to detect the absorbance characteristics of tattoo inks, dermal clearing agents, and perhaps even lasers with shorter pulse-durations might improve the results in the future.

With PDL, it is possible to achieve good results with numerous, partly less well-known indications (i.e. lupus erythematosus). With other diseases, PDL has so far been considered to be a complementary therapy method or to be in an experimental state.

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