Helmut Zepf (47.575.08) Titanium cross-head screw for MIS, 1.5mm diameter, 8mm length, blue anodized - Delynov

What is the Helmut Zepf 47.575.08 cross-head screw?

The Helmut Zepf screw (reference 47.575.08) is a miniaturized osteosynthesis device made of titanium, specifically designed for oral surgery protocols. This model is distinguished by its cross-head structure, providing a secure grip interface with the appropriate screwdriver. Its titanium design guarantees excellent biocompatibility, limiting adverse tissue reactions. The blue anodization is not merely aesthetic; it allows the practitioner to quickly distinguish the diameter and length of the device within their surgical kit or during the procedure. This product is part of the fixation solutions for guided bone regeneration (GBR), where the primary stability of the graft material is a prerequisite for successful bone reconstruction.

What are the clinical indications for this micro-invasive dental screw?

This micro-invasive dental screw is primarily indicated for the fixation of non-resorbable membranes, titanium meshes, or autogenous and allogeneic bone blocks. In implantology and periodontology, it is used during reconstruction surgeries for vertical or horizontal bone defects. Its primary function is to immobilize the graft material or the protective barrier to prevent any micro-movement during the initial healing phase. The mechanical stability provided by this 1.5 mm diameter device is crucial to prevent connective tissue invasion and promote the formation of new healthy bone. It is particularly suited for micro-invasive surgery techniques where access space is limited and requires high-precision instrumentation.

What are the technical characteristics of the Helmut Zepf screw?

The technical screw referenced 47.575.08 by Helmut Zepf features precise dimensional specifications to meet micro-surgery requirements. It has a body diameter of 1.5 mm and a total length of 8 mm. These dimensions allow for sufficient anchorage in the cortical bone while remaining low-profile for the surrounding soft tissues. The screw head is a cross-head type, ensuring efficient torque transmission and reducing the risk of the instrument slipping during driving. The material used is titanium, recognized for its mechanical properties and corrosion resistance in physiological environments. The blue anodization applied to the metal surface facilitates ergonomic organization in the dental office and allows for immediate visual identification of the model among other dimensions.

What are the contraindications for using this titanium device?

Although detailed MDR specifications are not provided here, general contraindications for this type of titanium screw include known allergies or hypersensitivity to titanium or its alloys. Clinically, the use of this screw may be contraindicated in patients with uncontrolled systemic pathologies affecting bone healing, such as severe diabetes or advanced osteoporosis treated with certain bisphosphonates. Insufficient residual bone volume to ensure the primary stability of the screw also constitutes a technical contraindication. It is the surgeon's responsibility to evaluate the quality of the recipient bone and the patient's general health before any implantation. Failure to comply with sterilization protocols or the use of non-compatible placement instruments are also major risk factors.

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

As the Helmut Zepf screw is made of titanium, it is non-resorbable. This means it does not degrade in the body and retains its structural integrity indefinitely. Depending on the treatment plan established by the practitioner, the screw may remain in place permanently if it is fully integrated and does not interfere with the final prosthesis, or it may be removed during a second surgical stage, usually at the time of implant placement or removal of protective membranes. During handling, it is imperative to use specific instruments to avoid any ferrous contamination of the titanium surface, which could compromise biocompatibility. Particular attention must be paid to soft tissue closure to ensure complete coverage and avoid premature exposure of the fixation hardware.

Who is the manufacturer and what standards are met by this product?

The official manufacturer of this device is Helmut Zepf Medizintechnik GmbH, a German company recognized for its expertise in manufacturing high-precision surgical instruments and osteosynthesis solutions. As a specialized manufacturer, Helmut Zepf applies rigorous production processes to guarantee the compliance of its products with the requirements of modern oral surgery. Although specific details of the CE marking or regulatory class are not mentioned in the current source data, Helmut Zepf products are developed according to high industrial quality standards. Practitioners are invited to systematically refer to the instructions for use and product labeling to verify current certifications and the reprocessing or sterilization instructions specific to each technical reference.

State of the art

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