In the context of sequential irradiation, the 1570 nm non-ablative laser functions as a thermal enhancer that specifically targets the dermal layer. Its primary role is to significantly expand the coagulation zone initiated by the preceding ablative step. By doing so, it increases the total volume of treated tissue without causing further disruption to the skin's surface.
The 1570 nm wavelength acts as a subsurface multiplier; it extends the therapeutic impact of the treatment deep into the dermis while ensuring the epidermal barrier remains intact to manage recovery.
The Mechanics of the Auxiliary Role
Selective Dermal Heating
The core function of the 1570 nm laser in this sequence is deep tissue heating. Applied immediately after the ablative step, it penetrates the skin to target the dermal layer specifically.
Expanding the Coagulation Zone
Rather than functioning as a standalone treatment, it acts on the tissue already primed by the first laser. It generates thermal energy that widens the zone of coagulation, effectively treating a larger volume of tissue than the ablative laser could achieve alone.
Non-Disruptive Penetration
Crucially, this wavelength operates on a non-ablative principle. It delivers energy through the skin surface without breaking it, ensuring that the increase in treatment volume does not come at the cost of surface integrity.
Clinical Impact on Outcomes
Enhancing Collagen Remodeling
The expansion of the coagulation zone has a direct biological purpose. By delivering controlled heat to a wider area of the dermis, the laser enhances the remodeling capacity of collagen fibers, which is essential for tissue rejuvenation.
Controlling the Recovery Period
This technology allows practitioners to increase the intensity of the treatment without extending downtime. Since the 1570 nm laser does not create additional vaporization channels, the post-operative recovery period remains controlled despite the increased thermal effect.
Understanding the Operational Distinctions
Coagulation vs. Vaporization
It is vital to understand that this laser offers no ablative capability. It cannot replace the channel-creation function of the first step; its sole purpose is to add thermal coagulation to existing channels.
The Necessity of Sequencing
The auxiliary benefit is strictly tied to the sequential application. The reference specifies that the 1570 nm laser is applied after the ablative step, utilizing the initial treatment as a foundation for deep thermal expansion.
Making the Right Choice for Your Goal
To maximize the utility of sequential irradiation, consider how this auxiliary step aligns with your clinical objectives:
- If your primary focus is Maximal Tissue Remodeling: Utilize the 1570 nm step to expand the coagulation zone and stimulate deeper collagen activity without deepening the wound.
- If your primary focus is Safety and Recovery: Rely on the non-ablative nature of the 1570 nm wavelength to add efficacy while preventing the formation of new vaporization channels that would prolong healing.
By integrating the 1570 nm laser, you effectively decouple deep tissue stimulation from surface damage, achieving a more potent treatment with a manageable safety profile.
Summary Table:
| Feature | Role of 1570 nm Laser in Sequential Irradiation |
|---|---|
| Primary Function | Thermal enhancer and subsurface multiplier |
| Target Area | Deep dermal layer (subsurface heating) |
| Thermal Impact | Expands the coagulation zone initiated by ablative steps |
| Surface Effect | Non-ablative; maintains epidermal integrity |
| Clinical Benefit | Increases treatment volume without extending recovery time |
| Key Outcome | Enhanced collagen remodeling and tissue rejuvenation |
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References
- Igor Snast, Assi Levi. Clinical and histological evaluation of a dual sequential application of fractional 10,600 nm and 1570 nm lasers, compared to single applications in a porcine model. DOI: 10.1007/s10103-021-03460-5
This article is also based on technical information from Belislaser Knowledge Base .
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