D&PS

Daily Issue (DEC 7. 2021)

LASER in Clinical Medicine
#19-6. The Composition, Principles, and Types of Lasers

In order for laser to secure selective photothermolysis on the target, (1) the wavelength should be selective to the target chromophores, (2) the irradiation time should have the irradiation time equal to or shorter than the TRT of the target chromophores, and (3) the energy fluence is sufficient to destroy the target chromophores. Only when these conditions are met, the target chromophores can be selectively destroyed and removed without damaging the surrounding normal tissues, thus resulting in reduced recovery time and side effects that can occur after undergoing a laser procedure.
The extended theory of selective photothermolysis is an extended concept of the selective photothermolysis. According to the theory, when a wavelength suitable for the chromophores is used and a fluence sufficient to destroy……

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