TREPAN. INTERNAL DIAMETER 2.3 MM - Helmut Zepf (08.910.02) - Delynov

What is the Helmut Zepf 2.3 mm trephine?

The Helmut Zepf 2.3 mm trephine, referenced under code 08.910.02, is a rotary surgical instrument specifically designed for implantology and oral surgery procedures. This device allows for precise bone coring to obtain cylindrical grafts or to remove already integrated implants. Manufactured by Helmut Zepf Medizintechnik GmbH, this high-precision tool meets the requirements of practitioners for handling hard tissues. Its structure is optimized for use on a contra-angle, ensuring stable force transmission during the drilling or milling phases in the jaw.

What are the clinical indications for this 2 3mm trephine?

The clinical indications for this 2 3mm trephine primarily include the harvesting of autogenous cylindrical bone blocks. These bone cores can be directly reused at other surgical sites or processed via a bone crusher for filling procedures. In addition to graft management, this instrument is indicated for the explantation of implants. It allows the implant to be cleared from its bone environment in a controlled manner. The choice of diameter must be strictly adapted to the size of the desired block or the dimensions of the implant to be removed to ensure the effectiveness of the intervention.

What are the technical characteristics of the 08.910.02 trephine?

The Helmut Zepf trephine has an internal diameter of 2.3 mm, a critical dimension for the calibration of bone samples. Technical and robust, it must be attached to a contra-angle. The manufacturer recommends a motor rotation speed between 800 rpm and a maximum of 1000 rpm depending on the procedure (block harvesting or explantation). An essential characteristic of its implementation is the requirement for abundant irrigation with a sterile physiological saline solution, either manually or via the internal irrigation system of the contra-angle, in order to prevent any thermal overheating of the surrounding bone tissues.

What are the contraindications and precautions for use?

Although the technical text does not list specific systemic contraindications, strict operative precautions are dictated by Helmut Zepf. Excessive pressure must never be exerted during drilling or milling. A critical error to avoid is stopping the motor while the trephine is still inserted in the surgical cavity; this could jam the instrument or cause it to break. The process must be performed using continuous inward and outward movements. Failure to follow these handling protocols can lead to clinical complications or damage the structural integrity of the device.

How should the trephine be handled during an explantation?

For explantation, the practitioner must first select the trephine based on the diameter of the implant to be removed. Once fixed to the contra-angle, the motor must be set between 800 and 1000 rpm maximum. Activating the motor triggers a milling process with constant insertion and extraction movements. Irrigation with a sterile physiological saline solution must be particularly generous to flush out debris and cool the site. It is imperative to maintain the rotation of the instrument until complete removal from the cavity to avoid any risk of breakage or jamming of the trephine head around the implant.

Who is the manufacturer and what standards are respected?

This medical device is manufactured by Helmut Zepf Medizintechnik GmbH, located in Seitingen-Oberflacht, Germany. The product belongs to Class IIa according to medical device regulations, which attests to its level of safety and compliance for short-term invasive surgical interventions. The mention MDC0483 is associated with its regulatory classification. As a recognized manufacturer in dental instrumentation, Helmut Zepf guarantees that this trephine meets the quality standards required for bone tissue treatment and implant explantation in a sterile environment.

State of the art

Surgical medical consumables play a decisive role in operative safety.