Laser techniques based on photothermolysis: general classification
Full beam ablative laser treatments (classical techniques)
It is customary to divide laser technologies into ablative (methods that destroy the surface of the epidermis) and non-ablative (without damaging the skin surface). The classification by the method of beam formation divides laser technologies into full-beam and fractionated beam technologies.
Planar effects with a full laser beam are usually called classical techniques. To implement ablation techniques (a large number of methods for grinding skin, scar tissue, removal of soft tissue formations), laser systems that generate wavelengths that are selectively absorbed by water (Er:YAG, ErCr:YSGG, CO2 lasers) are usually used.
The main mechanism of operation of ablative laser systems is selective photothermolysis. In aesthetic medicine, methods that lead to extensive destruction of the basement membrane are not used, because in the postoperative period they lead to the appearance of epithelialization and, accordingly, to the risk of scar formation.
Removal of dermal nevi and other interventions deeper than the basement membrane should be considered procedures performed for medical indications, and the result of the work should be evaluated based on the canons of general medicine, not aesthetic dermatocosmetology.
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