Angulated conical osteotome insert, size 7, diameter 4 mm to 6 mm - Helmut Zepf (47.991.70) - Delynov

What is the Helmut Zepf conical angular osteotome insert?

The conical angular osteotome insert, referenced under code 47.991.70 by Helmut Zepf, is a specialized dental osteotome tip. This size 7 device features a conical structure with a diameter evolving from 4 mm to 6 mm. Its angular design is specifically studied to meet the needs of surgeons during interventions on maxillary or mandibular bone structures. Manufactured by Helmut Zepf Medizintechnik GmbH, this instrument is part of a range of devices dedicated to fine bone surgery. Its morphology allows for efficient force transmission during impaction, while maintaining increased visibility of the surgical field thanks to its specific inclination.

What are the clinical indications for this dental osteotome tip?

This insert is primarily indicated for implant surgery protocols requiring atraumatic bone preparation. It is used for ridge expansion (split control) when horizontal bone volume is insufficient for immediate implant placement. Another major application concerns bone condensation in low-density bones (type III or IV), allowing for improved primary stability of the implant. The 4 mm to 6 mm dental osteotome tip is particularly suitable for large-diameter implant sites or for the final enlargement phase of the drill hole. Its angulation facilitates work in molar sectors where the patient's mouth opening limits the use of straight instruments.

What are the technical characteristics of the 47.991.70 insert?

The technical characteristics of this Helmut Zepf insert are based on a precise conical geometry of size 7. The working diameter starts at 4 mm at the distal end to reach 6 mm at the base of the active part, allowing for controlled and gradual expansion. The device is designed to be mounted on a compatible osteotome handle (not included). Reference 47.991.70 guarantees full traceability of the product from the Helmut Zepf Medizintechnik GmbH factories. The surface finish is optimized to limit adhesion to bone tissue while ensuring direct mechanical transmission. Its angular shape is an ergonomic asset for the practitioner, reducing stress on soft tissues during insertion.

What are the contraindications for the use of this instrument?

Contraindications for the use of this conical osteotome insert are related to the physiological limits of the bone and the patient's general clinical conditions. It must not be used on excessively dense bone (type I) without prior drilling, at the risk of generating fractures of the bone plate or thermal necrosis by excessive compression. Use is prohibited in case of active local infections at the surgical site or uncontrolled systemic pathologies affecting bone metabolism. As with any metallic instrument, a known hypersensitivity to the alloy components constitutes a contraindication. The practitioner must evaluate the quality of the bone support by imaging before any expansion attempt with this size 7 tool.

What are the maintenance and durability precautions?

Although specific resorption data do not apply to this non-implantable instrument, its durability depends on compliance with sterilization protocols. As a reusable device in the CONSO category, this Helmut Zepf insert must undergo a full cycle of pre-disinfection, cleaning (manual or ultrasonic), and autoclave sterilization according to the manufacturer's parameters. It is imperative to inspect the dental osteotome tip before each use to detect any signs of oxidation, deformation, or blunting of the edges. Rigorous maintenance ensures the maintenance of nominal dimensions (4 mm to 6 mm) and prevents the risks of cross-contamination between surgical interventions.

Who is the manufacturer and what standards are respected?

The official manufacturer of this device is Helmut Zepf Medizintechnik GmbH, a recognized company in the high-precision surgical instrumentation sector. Although the specific regulatory class and CE marking are not detailed in the current technical sheet, Helmut Zepf products are traditionally manufactured according to rigorous quality standards specific to European medical devices. To obtain precise information on MDR compliance or ISO certifications in force for reference 47.991.70, it is recommended to refer to the instructions for use or contact the Delynov technical service directly. The manufacturer ensures the traceability of each insert produced to guarantee the safety of care in implantology.

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