A natural, porous bovine-derived graft with excellent osteoconductivity and volume stability

A-Oss

How do you benefit from the A-Oss?

A-OSS is a bovine-derived bone graft substitute with a pore structure optimized for new bone formation, excellent blood flow, and long-lasting volume stability—ideal for esthetic applications. A-Oss is a deproteinized bovine bone xenograft designed for superior bone regeneration. Unlike synthetic alternatives, its organic origin yields a microporous architecture closely resembling human bone—promoting predictable osteogenesis and long-term volume maintenance.

Why It Matters for Clinicians

Bone regeneration success lies in predictable scaffold behavior and safe integration. The Osstem A-Oss delivers both: its human-like porosity expedites bone remodeling, its hydrophilic properties support cell attachment, and its stability maintains graft volume—without compromising safety. This makes it particularly suitable for aesthetic restorations and challenging GBR cases. Clinicians benefit from enhanced regenerative reliability, better handling, and increased confidence in implant site preparation.

Key benefits

  • Three-Dimensional
    3D microspores with a rough surface facilitate abundant blood inflow and osteoblasts attachment.
  • Blood Wettability
    Outstanding pore structure provides excellent blood wettabililty.
  • Volume Maintenance
    Acts as a reliable scaffold when mixed with other graft materials—providing predictable outcomes, especially in anterior aesthetic zones.
  • Low Immune Reactivity
    Exhibits reduced bacterial adhesion, lowering inflammatory risk and optimizing healing conditions.
  • Enhanced Hydrophilicity
    The surface promotes protein adsorption and osteoblast attachment, leading to effective bone regeneration.
  • Human-like Trabecular Structure
    Interconnected micropores facilitate vascularization and osteogenic cell migration, enhancing new bone formation.

Blood affinity

Soak in 1.0cc blood.
Osteogenesis by weeks
Outstanding Blood Wettability promotes Osteogenesis
  • Outstanding pore structure provides excellent blood wettablilty
  • Osteoblasts in blood forms a large quantity of new bone
  • 1.0cc of A-Oss can contain 1.0cc of blood
Volume preservation by weeks
Xenograft
Allograft

Mixed use with other graft materials

Excellent Volume Maintaining Properties are Appropriate for use in Esthetic Areas
  • Stable maintenance of blood during osteogenesis period
  • Appropriate for anterior part where maintaining volume is critical
  • Stable volume maintenance even when used with allograft or synthetic graft
Human Bone
A-Oss

Surface SEM (X5.udo)

Human Bone
A-Oss

Trabecular structure SEM (x50)

Pore and Surface Structures that Facilitate Osteogenesis
  • 3-Dimensional micropres facilitate inflow of blood
  • Rough surface structure helps attachment of abundant osteoblasts
A-Oss (Osstem)
Product B (Company G)
Lower immune response

Oral bacteria has less affinity to the A-GRAFT, which significantly reduces the risk of inflammation.

** Fluorescent microscopy observation
(After 15 mins of exposure to the same oral bacteria)

Don't miss the Event of 2026

Osstem World Meeting 2026

Thailand, Bangkok

27. - 28. Apr. 2026

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