Histologic comparison of microscopic treatment zones induced by fractional lasers and radiofrequency

Abstract

This study provides the first comparison of MTZs induced by various fractional lasers and RF. These data provide basic information on proper laser and RF options. We think that these findings could be a good reference for information about fractional laser-assisted drug delivery.

Fractional ablative and nonablative radiofrequency for skin resurfacing and rejuvenation of Thai patients

“…For example, Sadick et al found a clear dose/effect relationship with maximum ablation depth of 200 μm and coagulation depth up to 300 μm. Shin et al showed maximum 118.43 μm ablation depth while using the highest power (100 W) which similar to depth found with Shallow program in our study.…”

Comparison of efficacy and safety of fractional radiofrequency and fractional Er:YAG laser in facial and neck wrinkles: Six‐year experience with 333 patients

“…Previous histological studies revealed significant neoelastogenesis and neocollagenesis after fractional laser treatments with new dermal tissue replacing denaturated collagen within 10 week (Sadick & Rothaus, ). Researches also confirmed that erbium lasers resulted in low thermal damage than other fractional ablative lasers but usually produced more bleeding (Shin, Choi, Ahn, & Lee, ).…”

Fractional microplasma radiofrequency technology for non‐hypertrophic post‐burn scars in Asians: A prospective study of 95 patients

“…2. Several animal studies confirmed that the penetration depth of plasma on skin is 2-4 mm, depending on the energy settings [9,10]. Clinical observations also suggested that scars thicker than 4 mm often requires a higher energy setting and more treatment sessions.…”

“…With our research findings and relevant literature, we propose the following recommendations for treating scars: The findings show that FMRT was beneficial for treating scar thickness, color, and pliability but not for pain relief, itching, or scar contracture. Therefore, surgical correction is recommended for severely contracted scars prior to plasma treatment. Several animal studies confirmed that the penetration depth of plasma on skin is 2–4 mm, depending on the energy settings . Clinical observations also suggested that scars thicker than 4 mm often requires a higher energy setting and more treatment sessions.…”