Crown Down for Astra Tech. The Compatible Implant Drill Kit.

Yes. Crown Down publishes a drilling chart for the Astra Tech EV line (the current flagship with OsseoSpeed EV surface and conical connection), and the same universal drill geometry prepares the osteotomy for the legacy Astra Tech TX line and the parallel-walled XiVE line. The 2-drill protocol maps each Crown Down carbide drill to the osteotomy diameter Dentsply Sirona specifies for each implant, so the same universal kit places Astra Tech implants using Astra's published surgical parameters. Drilling-chart mappings for XiVE, Ankylos, and older Astra Tech TX are available on request by booking a clinical demo.

The osteotomy diameter and depth end up the same; the drill count is the difference. The Astra Tech EV surgical protocol prepares the site through a Twist Drill → Pilot Drill → (optional cortical profile drill) → Twist Drill matched to the implant diameter, with a separate Profile Drill for dense bone. That's typically 4 to 6 drill changes per site. The Crown Down 2-drill protocol replaces that sequence with one cortical pass and one trabecular pass, prepared to the same final diameter Dentsply Sirona specifies for the EV implant being placed. Bone-quality management shifts from a separate profile-drill step to the two-material progression of the cortical and trabecular Crown Down drills.

No. Crown Down drills use a Morse taper 1.5° lock with a 4.0 mm shank well, which is the same standard contra-angle interface used by Dentsply Sirona's Astra Tech surgical drills (and by every other major implant system). There is no proprietary driver, no coded push-button retainer required, and no adapter. Any handpiece already on your Astra Tech tray for freehand cases accepts Crown Down drills.

An Astra Tech EV surgical kit retails between $2,800 and $4,500 depending on configuration (EV-only cassette, EV + TX combined, or full-portfolio with XiVE and Ankylos), plus recurring drill replacement as the stainless steel drills dull. Dentsply Sirona list pricing on individual Astra replacement drills sits at the top-mid of the market (roughly $150 to $250 per drill) because the multi-step protocol requires more distinct SKUs than most systems. Astra practices typically spend $6,000 to $14,000 across a 5-year window once ongoing drill replacements are counted. Crown Down is a flat $3,495 with no replacement cycle.

Yes. Dentsply Sirona's guided-surgery templates (whether planned in Simplant, in the Atlantis WebOrder workflow, or in third-party planning software) use standard 5 mm inner-diameter sleeves that the Crown Down coded depth stoppers seat into directly. Guides planned in coDiagnostiX, Blue Sky Bio, 3Shape Implant Studio, or any other DICOM-based Astra workflow work with Crown Down drills the same way they work with Astra Tech surgical drills. Because the 2-drill protocol replaces the standard 4- to 6-step Astra drilling sequence, the number of through-sleeve handovers drops sharply on guided cases.

Yes for the osteotomy. XiVE is parallel-walled with progressive drilling; Ankylos uses a friction-fit tapered abutment interface with its own conical connection; Astra Tech TX (the legacy line still placed for older restorations) uses the original Astra osteotomy geometry. All three are covered by the same universal carbide drill geometry — only the mapping to each line's specific diameters changes. Drilling-chart PDFs for XiVE, Ankylos, and Astra Tech TX are issued on request; book a clinical demo and we'll publish it.

Both names refer to the same product portfolio. Astra Tech AB was acquired by Dentsply International in 2011, and the merged entity became Dentsply Sirona in 2016. The implant lines (Astra Tech EV, Astra Tech TX, XiVE, Ankylos) and the surgical kits carried forward under Dentsply Sirona ownership with the same osteotomy specifications; the corporate parent changed. Many clinicians still say "Astra Tech" in practice. Crown Down's Astra Tech EV drilling chart is unaffected by the corporate history.

No. Crown Down is an independent manufacturer of universal implant drilling kits. "Dentsply Sirona", "Astra Tech", "Astra Tech EV", "OsseoSpeed", "OsseoSpeed EV", "XiVE", "Ankylos", and "Atlantis" are trademarks of Dentsply Sirona Inc. Crown Down references Dentsply Sirona here only to document compatibility with Dentsply Sirona's published osteotomy specifications; there is no partnership or endorsement.