Is a Fractional non-ablative laser different than a CO2 ablative laser? Is one of these methods the best for treating acne scars? How long does the redness last?
Difference Between Fractional and CO2 Lasers?
Doctor Answers 13
A fractionated laser is one that spares portions of the epidermis to affect changes in the deeper epidermis or dermis. A fractionated laser can be either an Erbium or CO2 laser. Both are effective, the physician who is using it is more important then the actual laser. Fractionated technology is aimed at acheiving similar results to standard "resurfacing" with less downtime.
However, because the downtime is less the results are not as dramatic as with traditional resurfacing. That being said, I very rarely do any traditional true "deep" laser peels anymore because of the associated downtime and increased risk of complications. I usually do a combination of a superficial laser resurfacing followed by a fractionated laser treatment. I feel this provides the best result with minimal downtime. I customize the settings according to how many days a patient can have downtime.
The less downtime, the less dramatic the result. Hope that helps.
Fractional vs CO2
The in vogue "fractional lasers" are fractional CO2 lasers. The fractional erbium is used only by those who purchased their systems a couple of years ago when the fractional CO2 was not yet available.The fractional CO2 treatments are more superficial than traditional "full" CO2 laser resurfacing procedures. Typically we use our fractional CO2 laser for treatment of blotchy pigmentation and very fine lines. On the other hand we use our traditional CO2 laser for treatment of deeper lines, for tightening of the skin, and for acne scarring of any significance. Of course the deeper treatment mandates a longer recovery time and also there are more potential risks. In my opinion the companies and some doctors over promise when using both of these technologies especially the newer fractional systems thus leading to patient disappointment!
Difference between fractional and ablative CO2 lasers
The difference between fractional CO2 and ablative CO2 laser resurfacing is the amount of damage that is delivered to your skin. The older ablative lasers burn 100% of your epidermis (the top skin layer) while fractional CO2 lasers burn a smaller fraction, usually around 20% -the technique is like pixels on a TV screen where there is a small core of laser damage separated by healthy skin. The advantages of fractional lasers include a lower risk of scarring and skin color changes, a quicker recovery time, a more natural appearance, and the ability to treat both darker skin types and areas of the body outside the face (neck, hands, chest, arms). The biggest disadvantage of the fractional laser is the fact that it is fractional and that more than one treatment may be necessary in order to achieve the result you are looking for.
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Fractional CO2 vs Ablative CO2 lasers
In recent years, most individuals don't have 3-4 weeks of downtime to take from work (let alone 3 months) so a fraction of the original CO2 laser energy was utilized to create fractionated CO2 lasers. Downtime was reduced to 7-14 days and the appearance of white pasty skin was eliminated. Of course, the results are not as amazing but individuals still enjoy an improvement in fine lines, scars, pigment, pore size, and breakouts and can be repeated easily in 1-2 years if desired with a week or 2 of downtime.
Fractionated lasers are ablative lasers but the laser only ablates a fraction of the skin surface unlike fully ablative CO2 lasers. I hope that helps.
Difference between fractional and co2 lasers
The Fraxel is a fractionated Co2 laser. It is the next generation in CO2 lasers. The older CO2 lasers were extremely aggressive, painful, poor healing, and had many complications such as hypo-pigmentation and scarring. Along came the Fraxel CO2 laser which used fractionated technology to accomplish the same smoothing of the skin, and reduction of fine lines without the aggressive treatment or side effects. Fraxel is ideal for treating sun damage, pigmentation, lines, wrinkles, and scars. It is the best laser! Just find someone experienced with this laser so that you can achieve the best results.
Fractional vs. CO2 lasers
CO2 can be either
Fractional versus CO2
Fractional treatments can be non-ablative or ablative. Creating small holes in the skin, non-ablative passes through the top layer of skin or epidermis and is a more gentle treatment than the ablative therapy which goes through the epidermis into the dermis. Non-ablative fractional treatments usually work over time - 4-6 treatments over a 4-6 month period of time to achieve the desired results. Ablative fractional treatments work faster, but are associated with more downtime than most non-ablative treatments.
Fractional and CO2 lasers
To answer your first question - yes, a fractional non-ablative laser is different than a CO2 ablative laser?
First lets define our terms:
"Fractional" simply means that instead of a solid beam, the laser creates a grid-like pattern (as if you were shining a flashlight through black paper with pinholes in it).
"Ablative" means that tissue is destroyed. "Non-ablative" means that the tissue is just heated up. An ablative laser treatment will leave tiny crusts. A non-ablative treatment just leaves you red (and maybe swollen).
A CO2 laser is a specific type of laser. CO2 lasers come in both "fractional" and "non-fractional" varieties, but they are all "ablative".