CMS TITANIUM MICRO-SCREW DIAM.1.2 X 8 MM CROSS-HEAD, ANODISED GREY - Helmut Zepf (47.574.08) - Delynov

What is the Helmut Zepf 47.574.08 CMS micro-screw?

The CMS (Cranial Micro System) micro-screw developed by Helmut Zepf is a miniaturized osteosynthesis device specifically designed for oral surgery procedures. This model features a diameter of 1.2 mm and a length of 8 mm. Made of titanium, it features grey anodization, facilitating visual identification during the procedure and guaranteeing excellent biocompatibility. Its structure includes a cruciform head, optimizing torque transfer during screwing and ensuring a stable connection with the corresponding instrument.

What are the clinical indications for this titanium micro-screw?

In implant and oral surgery, this Helmut Zepf brand micro-screw is primarily indicated for the fixation of devices during guided bone regeneration (GBR) protocols. It is used to firmly maintain membranes (resorbable or non-resorbable) or to stabilize cortical bone grafts harvested from the patient. Strict immobilization of the graft material or barrier is a critical condition to prevent micromovements, promote angiogenesis, and ensure the success of bone volume augmentation before or during implant placement.

What are the technical characteristics of the 47.574.08 micro-screw?

This technical device is distinguished by precise dimensions: a shank diameter of 1.2 mm and a total length of 8 mm. These specifications allow for precise insertion even in areas where bone volume is limited. The cruciform head of the screw is designed to offer maximum safety during handling, reducing the risk of accidental disconnection between the screw and the screwdriver. The grey anodization surface treatment does not alter the mechanical properties of the titanium but allows for rapid differentiation within the Helmut Zepf surgical kit.

What are the contraindications for the use of this device?

The use of this micro-screw is contraindicated in patients with a known hypersensitivity or allergy to titanium or its alloys. Clinically, it should not be used if the bone quality of the recipient site is insufficient to ensure primary stability of the thread. As with any osteosynthesis device, uncontrolled systemic pathologies affecting bone metabolism or healing (such as certain types of diabetes or high-dose bisphosphonate treatments) constitute relative or absolute contraindications depending on the surgeon's evaluation.

What are the precautions related to the non-resorbable nature of titanium?

As the Helmut Zepf micro-screw is made of titanium, it is non-resorbable. This means it remains stable in the body without undergoing degradation by hydrolysis or enzymatic pathways. Depending on the chosen clinical protocol and the objective of the surgery (temporary membrane fixation or graft stabilization), a second procedure may be necessary to remove the screw once bone consolidation is achieved. The practitioner must ensure the screw is completely covered by soft tissue during flap closure to avoid any premature exposure that could lead to surgical site infection.

Who is the manufacturer and what are the recommendations for use?

This device is manufactured by Helmut Zepf Medizintechnik GmbH, a manufacturer recognized for its expertise in high-precision surgical instrumentation. To guarantee the safety and efficacy of the product, it is imperative to follow the sterilization and use protocols recommended by the manufacturer. The use of placement instruments (screwdrivers, pre-drills) specifically designed by Helmut Zepf for the CMS system is strongly recommended to avoid damaging the cruciform head or the screw thread during insertion.

State of the art

Guided bone regeneration (GBR) in implantology relies on membrane fixation quality.