Surgical expansion screw 1.8 x 2.5 mm - Helmut Zepf (47.565.05) - Delynov

What is the Helmut Zepf 1.8 x 2.5 mm expansion screw?

The Helmut Zepf surgical expansion screw, bearing reference 47.565.05, is a specialized device used in guided bone regeneration (GBR) protocols. This component is specifically sized with a diameter of 1.8 mm and a length of 2.5 mm. Its structure is designed to meet the requirements of oral and implant surgery, offering a fixation or expansion solution for practitioners. Manufactured by Helmut Zepf Medizintechnik GmbH, this screw is part of a range of high-precision instrumentation intended for interventions on hard tissues. Its design is optimized for controlled insertion into the recipient site, guaranteeing primary stability during critical phases of bone reconstruction.

What are the clinical indications for this device?

This expansion screw is primarily indicated for oral surgery interventions aimed at increasing bone volume or stabilizing filling materials. In implantology, it is used during ridge expansion techniques (split crest) or for the fixation of membranes and bone blocks. Its reduced dimensions of 1.8 x 2.5 mm make it particularly suitable for areas where available space is limited, allowing precise manipulation without compromising adjacent anatomical structures. The use of this Helmut Zepf device is reserved for experienced practitioners performing bone grafts, sinus lifts, or horizontal and vertical augmentations of the alveolar ridge before implant placement.

What are the technical characteristics of screw 47.565.05?

The Helmut Zepf expansion screw is distinguished by its rigorous technical specifications. It features a body diameter of 1.8 mm and a total length of 2.5 mm. These precise measurements allow for fine integration into the bone tissue. The catalog reference 47.565.05 ensures traceability and exact compatibility with the manufacturer's corresponding placement instrumentation. Although the specific material is not detailed in the source data, this type of surgical device is generally designed to offer optimal biocompatibility and high mechanical resistance to withstand compression stresses during the healing phase. The screw head is machined to allow a reliable grip with the appropriate surgical screwdriver.

What are the contraindications for the use of this expansion screw?

Contraindications for the use of the Helmut Zepf 1.8 x 2.5 mm expansion screw include clinical situations where bone quality is insufficient to ensure primary stability of the device. In general, any uncontrolled systemic pathology affecting bone metabolism or healing, such as unbalanced diabetes or severe osteoporosis, may constitute a contraindication. It is also imperative to ensure the absence of known allergies to the metallic components used by Helmut Medizintechnik GmbH. Active infections at the surgical site or insufficient oral hygiene of the patient are major risk factors that can lead to the failure of the bone regeneration procedure.

What are the precautions related to placement and removal?

When using this non-resorbable device, the practitioner must observe strict precautions to avoid any material fracture or damage to surrounding tissues. Placement must be performed with controlled tightening torque, respecting pre-drilling if necessary according to the bone density encountered. As this is fixation material for GBR, post-operative radiographic monitoring is recommended to verify the maintenance of the screw's position. Removal, if planned in the treatment plan after bone consolidation, must be carried out with specific Helmut Zepf instrumentation so as not to damage the neoformed bone. Particular attention must be paid to asepsis throughout the handling of the product.

Who is the manufacturer and what standards are respected?

The official manufacturer of this device is Helmut Zepf Medizintechnik GmbH, a recognized player in the field of surgical and dental instrumentation. The production of the 1.8 x 2.5 mm expansion screw (ref. 47.565.05) follows the high-precision manufacturing processes inherent to the brand's German expertise. Although specific certifications such as the regulatory class or CE marking are not explicitly detailed in this technical sheet, Helmut Zepf products are developed to meet the quality requirements of medical devices used in a sterile environment. Practitioners are invited to systematically refer to the instructions for use and official labeling provided by Delynov to confirm regulatory compliance data before any intervention.

State of the art

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