[Fractional photothermolysis].

Area of Science:

• Dermatologic laser medicine
• Aesthetic dermatology

Context:

• Fractional photothermolysis (FP) is a novel approach in dermatologic laser medicine.
• It utilizes an array of microscopic treatment zones (MTZ) for controlled thermal necrosis.
• FP offers a unique 3-dimensional pattern of skin damage and subsequent rapid healing.

Purpose:

• To introduce and explain the concept and application of fractional photothermolysis.
• To highlight its efficacy in treating various skin conditions.
• To position FP as an alternative to traditional laser therapies.

Summary:

• Fractional photothermolysis (FP) creates microscopic treatment zones (MTZ) by employing an array of small laser beams.
• These MTZ induce controlled thermal necrosis in the epidermis and dermis.
• Despite complete destruction within MTZ, the surrounding tissue facilitates rapid healing with minimal side effects.

Impact:

• FP has emerged as a significant alternative to conventional ablative and non-ablative laser therapies.
• Its clinical efficacy and limited side effects have led to its adoption for treating wrinkles, photodamaged skin, acne scars, and melasma.
• FP represents a key advancement in minimally invasive dermatologic procedures.