Crown Down for Straumann. The Compatible Implant Drill Kit.
You place Straumann. Your Straumann drills wear out on schedule and the replacement sequence is a recurring line item on the practice books. Crown Down is a tungsten carbide implant drill kit that maps to both Bone Level and Bone Level Conical osteotomy specifications, uses two drills instead of five to eight, and doesn't require scheduled replacement.
Which Straumann lines does the kit cover?
Crown Down publishes validated drilling charts for the two most widely placed Straumann Bone Level implant families. Each chart maps the Crown Down 2-drill protocol to the osteotomy diameter Straumann specifies for that implant at each drilling depth.
Straumann Bone Level (BL)
The parallel-walled Bone Level family. Drilling chart covers Ø 3.3, Ø 4.1, and Ø 4.8 mm implant diameters at all Straumann standard lengths.
Straumann Bone Level Conical (BLC)
The tapered BLC family (also marketed as BLX in some regions). Drilling chart covers the same three diameters with the tapered-osteotomy adjustments Straumann specifies for conical implant placement.
Both charts print on a single page and are designed to sit beside the surgical tray. Surface treatment (SLA, SLActive, ZLA) does not change the drilling sequence; the same chart covers every Straumann Bone Level implant regardless of surface finish.
What actually changes on a Straumann case with Crown Down.
The osteotomy is prepared to the same final diameter and depth Straumann specifies. Primary stability targets stay the same, implant selection stays the same, restorative components stay the same. What changes is the drill sequence itself: one cortical pass with a tungsten carbide drill matched to the implant diameter, then one trabecular pass with the paired second drill. Two drills per site, one cortical and one trabecular, instead of the pilot → intermediate → final sequence in a standard Straumann surgical kit.
Straumann steel kit sequence
- 1. Round bur (mucosal punch / crestal marking)
- 2. Needle drill (starter)
- 3. Pilot drill Ø 2.2 mm
- 4. Depth gauge / paralleling pin
- 5. Twist drill Ø 2.8 mm
- 6. Twist drill Ø 3.5 mm (BL 4.1)
- 7. Final drill matched to implant diameter
- 8. Crestal bone drill (if indicated)
5 to 8 drills, 800 to 2,000 RPM, continuous saline irrigation. Replaced roughly every 20 to 50 osteotomies as the cutting edge dulls.
Crown Down protocol on the same case
- 1. Cortical drill matched to implant diameter
- 2. Trabecular drill (paired partner)
2 drills, ~250 RPM, no saline dependency. Solid tungsten carbide, engineered for unlimited clinical use. Osteotomy is prepared to the exact final diameter Straumann specifies for the chosen implant.
Surgeons switching a Straumann workflow to Crown Down report that the biggest change is not the material or the drill count on paper — it’s the tray. The standard Straumann surgical tray lays out 8 to 12 sequenced drills with color-coded rings. The Crown Down tray shows one cortical drill and one trabecular drill for the diameter being placed, plus a single set of coded depth stoppers. Assistants report the setup reads at a glance.
5-year cost: Straumann steel kit vs Crown Down.
The Straumann Bone Level surgical kit is a well-engineered stainless steel kit. It also depreciates on schedule: the drills dull under normal clinical drilling loads and the practice reorders replacement drills to keep the tray in cutting condition. That reorder cycle is what turns the sticker price into an operating cost.
| Cost line | Straumann steel kit | Crown Down |
|---|---|---|
| Initial kit purchase | $2,000 to $3,500 | $3,495 |
| Drill replacement / year | $600 to $1,800 | $0 |
| 5-year total | $5,000 to $12,500 | $3,495 |
Ranges depend on annual case volume and replacement cadence. The dedicated drill cost calculator runs the exact numbers for your case volume and current Straumann invoice pricing.
The handpiece question
Same handpiece, same tray, same case flow.
Crown Down drills use a Morse taper 1.5° lock with a 4.0 mm well and an 18 mm shank length. This is the same open-standard interface that Straumann surgical drills use (and Nobel Biocare, Zimmer Biomet, and every other major implant system). Any standard contra-angle handpiece on your Straumann tray already accepts Crown Down drills without an adapter.
No proprietary driver, no reprocessing change, no separate handpiece budget. The kit ships, you sterilize it, and it replaces the Straumann drill sequence on the tray you already have.

Morse shank, 4.0 mm well, 18 mm length.
Frequently asked questions
Quick answers to questions clinicians ask most about this topic.
See the drilling chart for your Straumann line.
Download the BL or BLC drilling chart, book a clinical demo for your specific case volume, or run the 5-year cost math against your current Straumann invoice pricing.
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