Fractionated Ablative Laser

A wavelength of energy in microscopic columns vaporizes the fissue in
what is known as “microscopic thermal zones.” The zones are directed
through abnormal scarred collagen. The body then naturally repairs
these zones with newly regenerated collagen and elastic fibers.

Fractionated ablative lasers ablate tiny columns of tissue with the
surrounding zones remaining intact. Therefore, only about 20% of the
tissue is ablated. The surrounding 80% of the tissue remains unaffected
and is essential for rapid wound healing. Because only a portion of the
tissue is ablated, multiple sessions are necessary to achieve results.

In contrast, fully ablative lasers produce 100% ablation of the entire
epidermis and part of the dermis. Although the results can be quite
good with this treatment in only one session, there is prolonged
downtime and higher risk of complications, such as scarring, infection
and hyperpigmentation.

Yes, it can. However, patients need to be pretreated with bleaching
cream before and after treatment, along with strict photoprotection.
Despite these measures, there is still some risk of temporary
hyperpigmentation, but far less as compared to deeper CO2 ablation.

Yes, but these are rare, and far less than with fully ablative laser. Some
of the risks include bacterial and viral infections, persistent redness,
contact dermatitis, discoloration, and worsening of scarring.