The Thumbtack Screw is a precisely engineered dental mini screw designed for the stable fixation of barrier membranes and bone blocks during Guided Bone Regeneration (GBR) and bone defect repair procedures. Crafted from highly biocompatible, medical-grade Titanium Alloy, this system functions as a critical Anchorage screw, offering superior mechanical strength and space maintenance capabilities. It ensures that the barrier membrane (e.g., TISS Ti-Mesh or a pure titanium mesh) or bone graft remains securely in place during the critical pre-dental implant reconstruction phase, which is essential for successful GBR outcomes.
Core Material: High-strength, medical-grade Titanium Alloy (or Stainless Steel, depending on the specific model).
Design Systems: Two primary series are available to address varying clinical needs in bone defect repair:
OD2.5 Thumbtack Screw: Micro-fixation screw with a diameter of $D=1.1\text{ mm}$.
OD6.0 Thumbtack Screw: Reinforced fixation screw with a diameter of $D=1.5\text{ mm}$.
Size Range: A comprehensive selection of lengths (L) is provided to accommodate different soft tissue thicknesses, membrane types, and underlying bone morphology.
Intended Use: Specifically indicated for the temporary or semi-permanent fixation of barrier membranes and graft materials during dental bone augmentation procedures.
Optimal Biocompatibility: Manufactured using Titanium Alloy for minimal biological risk and exceptional tissue integration, aligning with the standards for long-term Fixture stability.
Robust Space Maintenance: Serving as a primary Anchorage screw, it provides excellent primary stability. The high-strength structure effectively prevents the collapse of the graft space by soft tissue pressure, which is critical for successful horizontal or vertical bone augmentation.
Versatile Size Selection:
The OD2.5 series supports micro-invasive fixation for thinner membranes or ti-mesh edge.
The OD6.0 series offers ideal for securing rigid materials like the pure titanium mesh or stabilizing a bone Block Graft.
Predictable Osseointegration Environment: Stable fixation of the membrane or bone block minimizes micro-movement, which is a key factor in promoting effective healing and predictable new bone formation during GBR.
Clinician Efficiency: Features an optimized head design for secure membrane retention and straightforward, controlled removal once the Guided Bone Regeneration phase is complete.
The Thumbtack Screw is an essential component for complex dental bone augmentation and bone defect repair, supporting several critical procedures:
Barrier Membrane Fixation: Ensures non-resorbable membranes, such as the pure titanium mesh (or TISS Ti-Mesh), are held rigidly in place to maintain the desired volume for horizontal or vertical bone augmentation.
Bone Block Stabilization: The higher mechanical strength and diameter of the OD6.0 Thumbtack Screw are specifically utilized for the reliable temporary fixation of autogenous or allogenic Block Graft materials, ensuring intimate contact between the graft and the recipient site for primary healing.
Pre-Implant Reconstruction: Critical for developing sufficient bone volume and quality to support the eventual placement of a dental implant and its Fixture.