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The use of lasers has revolutionized the minimally invasive surgery of the larynx. The physical principles of the laser functioning and the interaction between laser and the biological tissue are discussed in this article. We mention the most frequently used types of lasers in laryngology, the difference among them and the comparative characteristics. The precaution and safety measures in using lasers are described. We also discuss the advantages of laser surgery in different clinical applications. The accumulation of a more significant clinical material is required in order to determine the indications and the role of a certain type of laser for the treatment of a certain pathology of the larynx. However, it is important to mention that the efficiency of all types of lasers is highly dependent upon operative technique and the skills of the surgeon. [ABSTRACT FROM AUTHOR]