#11-4. Ablative Fractional Laser

▶ Previous Artlcle: #11-3. Ablative Fractional Laser

Compared with other types of ablative fractional laser or nonablative fractional laser, the CO2 fractional laser is most effective in terms of tissue regeneration.

However, applying general parameters to all patients without considering their skin condition, increasing pulse energy excessively or irradiating the microbeam distance too short for better results, can cause the micro-dot and erythema to remain or last longer and pigmentation to occur.

Therefore, it is important to determine the parameters appropriate for both a patient’s skin conditions and treatment goals and to minimize side effects through intensive post-operative care.

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2940nm Er:YAG Fractional Laser

The 2940nm Er:YAG Fractional Laser is also a widely used type of ablative fractional laser along with the CO2 fractional laser.

Due to its higher absorption rate to the water, Er:YAG laser produces a very small coagulation zone, and in most cases, creates microablative columns only (Picture 4).

This makes it less effective than the CO2 fractional laser due to its narrower regeneration range, but makes it easier and safer to irradiate the same area in a grid form.

This type of procedure can produce more microablative columns in one are, and further maximizes the micro-shouldering effect.