Collagen vs. Gelatin sponges

In the world of oral surgery and implantology, wound management and hemostasis are critical factors for successful treatment outcomes. Among the tools used to control post-extraction bleeding and support healing, absorbable sponges made from collagen or gelatin have become indispensable in everyday practice.

But while they might seem similar at first glance, collagen sponges (like DSI Pure Sponge) and gelatin sponges (like DSI Sponge HD) have different properties and benefits. Understanding these differences helps practitioners select the right product for each procedure.

Let’s discuss the key distinctions and explore the pros, cons, and application guidelines for both, with a special focus on the DSI sponge line.

1. Material Composition and Structure

• DSI Pure Sponge is made from 100% natural collagen derived from bovine Achilles tendon. It maintains the native triple-helix structure, which is biocompatible and supports cellular activity.
• DSI Sponge HD is based on medical-grade gelatin, a denatured form of collagen. It is non-toxic and safe for implantation, and suppressed 4 times during the production to achieve more homogeneous and     dense structure.

Bottom line: Collagen sponges offer a more biologically active matrix, while gelatin sponges are more cost-effective and easier to manipulate.

2. HemostaticProperties

• DSI Pure Sponge from collagen has natural hemostatic ability, promoting platelet aggregation and clot formation through its collagen matrix. It activates the coagulation cascade without requiring additives.
• DSI HD Sponge from gelatine also provides excellent hemostasis by absorbing large amounts of blood (up to 50x its weight), helping form a stable clot. However, it relies more on mechanical tamponade and less on biochemical stimulation.

Clinical tip: For profuse bleeding or exposed bone, DSI Pure may offer a moreeffective solution. For mild to moderate bleeding in routine extractions orsmall flaps, DSI HD is often sufficient.

3. ResorptionTime

• DSI Pure Sponge resorbs within 10–14 days, making it ideal for situations where faster integration is needed.
• Due to higher density, DSI Sponge HD resorbs more slowly – typically over 2–4 weeks, providing a longer-lasting presence in the surgical site.

Recommendation: Choose DSI Pure Sponge for faster turnover and healing (e.g., post-extraction bleeding control). Use DSI Sponge HD when prolonged support and ridge preservation is preferred (e.g., after difficult extractions or deep socket closures).

4. Handling and Application

• DSI Sponge HD are soft, pliable, and easy to cut or compress into any shape. They can be packed into sockets and stay in place with minimal pressure.
• DSI Pure Sponges are more fibrous and elastic, requiring more careful adaptation. However, this elasticity helps them maintain their volume under pressure.

Pro tip: Use DSI Collagen Sponges for quick, chairside adjustments. Opt for DSI Pure HD when you need a sponge that maintains space orserves as a scaffold for tissue regeneration.

5.Indications & Clinical Scenarios

Tip for clinics: Keep both in your surgical kit. One for routine cases and second for more complex surgeries or when tissue regenerationis expected.

Conclusion: Which One to Choose?

Both collagen and gelatin sponges play an essential role in modern dental surgery. Your choice depends on the specific clinical scenario, your priorities (hemostasisvs. regeneration), and the cost-effectiveness required in your practice.

Whatever your preference, DSI sponges deliver outstanding performance and long-term successfor your patients. Learn more about DSI's sponge portfolio:

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https://www.dsisrael.com/biomaterials/sponge

https://shopdsi.com/collections/sponges