Comparison of Picosecond Lasers vs. Ablative Fractional Er:YAG Lasers in Treating Atrophic Scar
Acne, Atrophic Scar
About this trial
This is an interventional treatment trial for Acne focused on measuring atrophic scar, acne, picosecond laser, ablative laser, efficacy, safety
Eligibility Criteria
Inclusion Criteria: age ≥18 years; presence with similar atrophic acne scars on both sides of the face; signed informed consent and cooperated with the follow up and complied the study protocol. Exclusion Criteria: a previous history of keloid or hypertrophic scar formation; undergone any acne scar treatments in the past 6 months before the first treatment; pregnant or lactating females; sensitive to lights; allergic to lidocaine; other preexisting skin conditions or uncontrolled systemic diseases.
Sites / Locations
- Second Affiliated Hospital, School of Medicine, Zhejiang University, China
Arms of the Study
Arm 1
Arm 2
Experimental
Sham Comparator
P-MLA
AF-Er
a fractional 1064-nm neodymium-doped yttrium aluminum garnet (Nd:YAG) picosecond laser with MLA handpiece (P-MLA for short)
ablative fractional 2940-nm Er:YAG laser (AF-Er for short)