Filler injections are a key tool in aesthetic medicine. Mastering various injection techniques allows practitioners to customize treatments for optimal results and patient safety.
In this post, we’ll explore the most commonly used dermal filler injection methods and their applications:
1. Linear Threading
In this method, filler is injected in a continuous line or “thread” as the needle moves through the tissue.
- Anterograde Injection: As the needle advances, the product is injected ahead of it. The injector can often visualize the filler tracking in front of the needle. This technique is commonly used for defining the vermilion border or treating the tear trough area
- Retrograde Injection: In this technique, the needle is first advanced to the desired depth without injecting. The filler is then released as the needle is withdrawn, depositing product along the tract.
2. Depot Injection
Small amounts (aliquots) of filler are deposited at specific points within the desired plane. This technique is useful for precise volumization in targeted areas.
3. Serial Puncture
Also known as the “string of pearls” technique, this involves multiple small depot injections placed in close succession along a wrinkle or fold. The injections form a linear pattern, effectively softening the treated area.
4. Fanning
From a single entry point, the needle is directed in multiple directions (fanned) while filler is injected in a retrograde manner. Care must be taken to stop injecting before the needle nears the entry site to avoid product buildup. The needle should be nearly withdrawn before redirecting to create new tracts. To ensure even distribution, multiple insertion sites may be used, with overlapping fanning patterns.
5. Cross-Hatching
Linear threads of filler are placed in an intersecting X-shaped pattern. This technique can provide enhanced support and lift to the treated area, often used for facial contouring.
6. Grid Technique
In this method, linear threads are injected to form a grid-like pattern, with threads intersecting at right angles. This is effective for larger areas needing uniform volume distribution.
7. Ferning
Filler is injected in a retrograde fashion along a central tract, with additional injections branching out from the sides, resembling the shape of a fern. This technique is ideal for treating fine lines, as it ensures even distribution in delicate areas.
8. Cannulas
The choice between needles and cannulas often depends on the injector’s preference and the treatment area. Cannulas minimize the risk of intravascular injury and may reduce bruising, though they offer less precise control compared to needles. Cannulas are typically favored for larger-volume injections in deeper planes (such as pre-periosteal or subcutaneous layers), while needles are preferred for finer, more controlled superficial injections.
Make sure that the products being used are sourced from an authorized dermal filler seller. This ensures that the fillers are authentic and of high quality, reducing the risk of complications or poor results.
Andrius specializes in the parallel trade of aesthetic medical devices and business management. Under his leadership, Bioresus is on track to becoming a leading global supplier of dermal fillers.
