Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .
Clinical Trial of Dual Treatment with an Ablative Fractional Laser and a Nonablative Laser for the Treatment of Acne Scars in Asian Patients
BACKGROUND Many methods have been proposed for the treatment of  acne scars  , with variable cosmetic results . Nonablative skin resurfacing is one method that has been proposed . Because of a need for more noticeable clinical improvements , the ablative fractional laser was recently introduced . OBJECTIVE To reduce complications and improve the results of ablative fractional laser resurfacing by combining this treatment of acne scars with nonablative lasers . METHODS A series of 20 patients ( skin phototypes IV – V ) with atrophic facial acne scars were r and omly divided into two groups that received three successive monthly treatments with an ablative fractional laser using high ( group A ) and low ( group B ) energy on one facial half and an ablative fractional laser with low energy plus a nonablative resurfacing laser on the other facial half . Patients were evaluated using digital photography at each treatment visit and at 3 months postoperatively . Clinical assessment scores were determined at each treatment session and follow‐up visit . RESULTS Although the use of the ablative fractional laser with high energy result ed in an improvement in patients ' acne scars , the combination of ablative fractional laser resurfacing and nonablative laser resurfacing yielded the best results , as assessed in photographs as well as by the overall appearance of the acne scars . With the combination method , fewer complications were observed . The authors have indicated no significant interest with commercial supporters
Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .