![]() Some of these techniques are described in the following sections. The current trends and techniques in laser tattoo removal have attempted to reduce the total number of sessions needed, to shorten the total duration of time required to achieve clearing of tattoos and also to minimize adverse effects. Frosting prevents further penetration of laser into the skin. The rapid heating of melanosomes converts cytoplasmic water into steam, which results in intracytoplasmic vacuole formation.ĭue to this, there is sudden change in light scarring properties of skin, which is evident clinically as whitening or frosting. This shock wave then propagates throughout the local tissue (the dermis) causing brittle structures (tattoo pigment) to fragment and leads to vibrational damage to cellular structures and rupture of cell membranes. The surface temperature of the ink particles can rise to thousands of degrees but this energy profile rapidly collapses into a shock wave. This energy is then selectively absorbed by tattoo ink because of its preferential wavelength and thermal relaxation time. Q switched laser delivers energy in an ultra-short duration, typically in nanosecond range with very high peak power. Laser tattoo removal is based on successful application of the theory of selective photothermolysis. Tattoos consist of thousands of large particles of pigment suspended in the skin.
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