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Implant Patient GuideIndependent information on Straumann® implant treatment

Specialist · Severe upper-jaw bone loss

Straumann® Zygomatic Implant System (ZAGA™ Flat and Round)

Anchored in the cheekbone when the upper jaw has too little bone

Zygomatic implants are extra-long implants anchored in the cheekbone (zygoma) for patients with severe bone loss in the upper jaw. Straumann offers two designs, ZAGA™ Flat and ZAGA™ Round, matched to the ZAGA anatomical classification.1

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Illustration of zygomatic implants in a skull supporting an upper arch
In short
  • For severe maxillary atrophy, when conventional implants have too little bone.2
  • Two designs: ZAGA™ Flat and ZAGA™ Round.1
  • Highly specialised surgery with specific risks, including sinusitis.2
  • We found no FDA 510(k) for a Straumann zygomatic implant; the system is sold in other markets.

Not an easy alternative to bone grafting

Straumann markets its zygomatic system as 'immediate, graftless, predictable'.1 That is the manufacturer's framing. Zygomatic surgery is complex, is performed close to the sinus and the eye socket, and is usually done by oral and maxillofacial surgeons with specific training.

Consensus / guideline

The ITI consensus report on zygomatic implants found mean long-term zygomatic implant survival of 96.2% over a mean follow-up of 6.3 years, with sinusitis occurring in 14.2% of cases. 2

These pooled figures cover zygomatic implants in general, not one manufacturer's system.

ZAGA Flat and ZAGA Round

ZAGA (Zygoma Anatomy-Guided Approach) classifies the upper jaw into types 0 to IV. Straumann matches ZAGA Round to types 0–I and ZAGA Flat to types II–IV.1 The surgeon chooses the design from your 3D scan.

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Risks to discuss with the surgeon

  • Sinusitis. The ITI consensus reports an overall prevalence of 14.2%.2
  • Soft-tissue problems around the implant heads.
  • Rare but serious complications near the eye socket.
  • Need for specialist follow-up.

Frequently asked questions

Are Straumann zygomatic implants available in the USA?
We found no FDA 510(k) clearance for a Straumann zygomatic implant in the FDA database (checked 28 September 2026).3 The system is marketed in other regions.
Clinical review pending. Facts on this page are checked against the sources listed below (regulatory records, manufacturer documents, peer-reviewed research). A named clinician will review it before we call it medically reviewed.
Last updated 28 Sep 2026 · How we review

Sources

  1. Manufacturer documentationStraumann® Zygomatic Implant System (product page) — Institut Straumann AG. Accessed 28 Sep 2026.
  2. Consensus / guidelineAl-Nawas B et al. ITI consensus report on zygomatic implants — Int J Implant Dent, 2023. Accessed 28 Sep 2026.
  3. Regulatory recordopenFDA: 510(k) clearances with applicant 'Straumann', product code DZE (69 records, 1990–2026) — U.S. Food and Drug Administration. Accessed 28 Sep 2026.

Educational information only. The choice of implant system depends on your anatomy, restorative plan, bone quality and the clinician's assessment. This website does not recommend a specific implant for you.

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