Trephine - Inside Ø 7.0 mm, Sheath 2.35 mm x 30 mm Lg, 17 Teeth Graduation 7/10/13/16 | Helmut Zepf No. 08.910.09
The dental trephine 7mm surgical instrument from Helmut Zepf is engineered for precision bone coring and surgical site preparation in demanding clinical environments. Designed to meet the exacting standards of oral and maxillofacial procedures, this trephine delivers consistent, controlled performance with every use.
Product Specifications
- Inside Diameter: 7.0 mm
- Sheath: 2.35 mm x 30 mm length
- Number of Teeth: 17
- Graduation: 7 / 10 / 13 / 16 mm
- Item Number: Helmut Zepf No. 08.910.09
Clinical Performance
This dental trephine 7mm surgical instrument features a multi-graduation design (7/10/13/16 mm) that allows clinicians to accurately gauge depth during bone harvesting or implant site preparation. The 17-tooth cutting edge ensures smooth, efficient cutting action while minimizing trauma to surrounding tissue.
The sheath dimensions of 2.35 mm x 30 mm provide a secure, stable grip during rotary use, allowing for precise axial control. As a dental trephine 7mm surgical instrument, it is suited for guided bone regeneration procedures, block graft harvesting, and implant site assessment.
Made in Germany
Manufactured by Helmut Zepf GmbH, this instrument upholds the renowned quality standards associated with German dental instrument manufacturing. Each piece is crafted to deliver long-term reliability and dimensional accuracy in surgical applications.
1-Year Warranty
This Helmut Zepf instrument is covered by a 1-year warranty against defects in materials and workmanship from the date of delivery.
60-Day Returns — Any Reason, Even If Used
Put this instrument to work in your practice. If it is not right for you, return it within 60 days of delivery for a full refund — for any reason, even if it has been used.

FAQ
What procedures is this dental trephine 7mm surgical instrument suited for? It is commonly used for bone core harvesting, implant site preparation, and guided bone regeneration in oral surgical settings.
What do the graduation markings indicate? The 7/10/13/16 mm graduation markings allow the clinician to monitor cutting depth precisely during the procedure.
How many teeth does this trephine have? This trephine features 17 teeth designed for efficient and controlled bone cutting.
Compare With
| Brand | Trephines — graduated, Ø 1.7–10.0 mm (30 mm sheath) – Base Designation |
|---|---|
| Karl Schumacher | C-08.910.01/02/03/04/05/06/07/08/09/10/11/12 |
| ACE Southern | 04-9480-01 … 04-9487-02 |
| A. Titan | 363.02–363.06 (implantation trephines, Ø 2.4–5.2 mm; close match) |
| Salvin | TREPH-2 / TREPH-3.5 / TREPH-4 / TREPH-5 / TREPH-6 / TREPH-8 |
Base pattern designations shown. Same clinical pattern, not identical manufacture — see our Surgical Instrument Comparison Chart.
Manufacturer literature: ZEPF Dental Catalog (PDF) — more in our Catalogs & Product Library.
Specifications: Helmut Zepf No. 08.910.09
| Zepf No. | 08.910.09 |
| Instrument type | Trephine |
| Working end | Inside Ø 7.0 mm, 17 teeth, graduation 7 / 10 / 13 / 16 mm |
| Shank | 2.35 mm x 30 mm |
| Pack / sold as | Single instrument |
This trephine with an inside diameter of 7.0 mm cores a cylinder of bone: it is used to harvest a bone core for grafting, to remove a failed implant with minimal bone loss, or to take a biopsy. Depth marks at 7 / 10 / 13 / 16 mm show how deep the core has been cut. It has 17 teeth on a 2.35 mm shank and is one of the larger sizes, for wide implants and block harvesting.
Read the guides: Trephine Burs for Dental Implants · Trephines · Implantology & Bone Regeneration · All implantology instruments · All Helmut Zepf instruments
Backed by our Helmut Zepf Warranty — lifetime on extraction and explantation forceps, one year on every other Zepf instrument. Full terms and how to make a claim are on the Warranty page.




