TRIOS vs. iTero in 2026: How the Two Leading Intraoral Scanners Compare

Shopping for an intraoral scanner often comes down to two names: 3Shape TRIOS and Align iTero. Both scan crowns, implants and aligner cases well. The differences sit around the wand: which aligner system accepts your scans, how cases reach your lab, which diagnostic aids are built in, and whether prices are published.

A disclosure first: Elegant Dental Laboratory is an authorized 3Shape partner and provides TRIOS scanners through a lab program, so weigh our view with that in mind. We rely on 3Shape and Align documents, FDA records and independent peer-reviewed studies, and label manufacturer figures as claims.

Quick Answer

Choose iTero if Invisalign drives your practice: iTero integrates with Invisalign, while 3Shape says TRIOS scans are not approved for Invisalign in the US. Choose TRIOS if you want a wireless scanner, published pricing and an open platform for restorative work. For crowns and quadrants, independent studies find both accurate. For full-arch implants, recent lab studies favor iTero Lumina over TRIOS 5 and 6, and systematic reviews still rank photogrammetry ahead of intraoral scanning.

Which Models Are Current, and How Do They Compare?

3Shape's US lineup is TRIOS 6 and TRIOS 5, both wireless, plus TRIOS 3 Wired (see TRIOS 3 vs. TRIOS 6). Align's flagship is iTero Lumina, launched in January 2024; Lumina Pro adds near-infrared caries imaging.

How Fast and How Accurate Are They?

Speed figures are manufacturer claims measured differently: 3Shape counts images per second and claims up to 110% higher resolution for TRIOS 6 than the rest of its portfolio; Align quotes full-arch times and a 3x wider field of view for Lumina than for Element 5D. For accuracy, Align cites its own July 2024 bench test (data on file) in which Lumina beat TRIOS 5 and three other scanners. Independent studies that tested both brands are mixed:

In a systematic review of 13 studies of complete-arch implant impressions that included older iTero and TRIOS models, photogrammetry beat intraoral scanning in 10, and the authors still recommend a rigid prototype try-in (Pozzi et al., 2025). Training also improved scan trueness by about 19 µm (Limones et al., 2026).

Our reading: for single units and quadrants, both brands are accurate. For full-arch implants, Lumina has led TRIOS 5 and 6 in most studies, all on lab models. In patients, TRIOS 4 deviated less than Element 5D, so generation matters as much as brand.

Which Caries Aids Are FDA Cleared?

• iTero NIRI passes 850 nm near-infrared light through the tooth: healthy enamel looks dark, dentin and lesions bright. It is cleared as an aid for detecting and monitoring interproximal caries above the gingiva: Element 5D in 2020 (K193659), Lumina Pro in 2024 (K240573) and a modified Lumina Pro in July 2026 (K261847).
• 3Shape Dx was cleared on April 10, 2026 (K260082) as an aid for caries, tooth wear, gingival recession and plaque; 3Shape says the clearance covers adult patients. The AI version, Dx Plus, is a subscription that works only with TRIOS 6 scans, and its proximal caries view is not AI-detected. TRIOS 5 was cleared in 2022 as a fluorescence caries aid (K221249).

Independent data are limited. In 66 adults, Element 5D NIRI found 81.8% of the lesions that bitewings showed in dentin, with 93.9% specificity, but the authors say it does not replace bitewings when staging is needed (Bittar et al., 2026). Against histology, NIRI sensitivity was 37%, against 52% for bitewings (Rodrigues et al., 2026). TRIOS 5's fluorescence mode agreed poorly with panoramic radiographs and visual scoring (Öztürk Tunçel et al., 2026). We found no peer-reviewed study of Dx Plus in PubMed as of September 2026.

Invisalign and Orthodontics: The Biggest Divide

iTero is built around Invisalign: every current model lists Invisalign integration, case and progress assessment tools, and automatic scan upload for case submission.

TRIOS is the opposite in the US. 3Shape's support page lists the United States among the countries where TRIOS scans are not approved for Invisalign, and its TRIOS 6 FAQ says TRIOS 6 does not integrate with Invisalign at all. TRIOS users still have options: 3Shape Unite lists more than 100 partners across clear aligners, 3D printing, milling and other services.

Open or Closed: How Do Scans Reach Your Lab?

Both are open at the file level. TRIOS outputs PLY, DCM and STL, and 3Shape says scans can go to the lab of your choice; labs registered with 3Shape connect in one click. iTero exports STL and PLY, routes cases through the MyiTero portal, free for labs, and connects directly to exocad; Align puts mean transfer time at 4.6 minutes, based on 10,000 scans.

What Do Software and Service Plans Cost?

• TRIOS: 3Shape Unite is free, and 3Shape says TRIOS 6 has no mandatory subscription. The first year of TRIOS Care is included. After that, TRIOS Care starts at $219 per month (unlimited support, 5-year warranty, drop coverage, 10 TB of cloud storage), or TRIOS Only costs $0 with support and repairs paid per case. Dx Plus is extra.
• iTero: the service plan covers remote support, hardware replacement, software and OS updates, unlimited scans and unlimited cloud storage. Align says a separate plan is required after the first year unless an extended plan is bought up front, and it publishes no plan price.

Weighing the purchase itself? Read Is an Intraoral Scanner Worth It?

Which Scanner Fits Your Practice?

Getting a TRIOS Through Elegant Dental Laboratory

Elegant Dental Laboratory, an authorized 3Shape partner, provides new TRIOS 3 and TRIOS 6 scanners to practices nationwide:

• Leased, not sold: the scanner stays the lab's property as long as your practice meets a monthly minimum of lab orders, with no fixed term. See the TRIOS 3 program and the TRIOS 6 program for terms.
• Your choice of labs: you may send scans to other labs as well.

Behind the scanner is a full-service lab: a 7,000 sq. ft. facility at 2308 McDonald Ave in Brooklyn, New York, founded in 2007 by Gary Fingerman, with more than 35 technicians. Every case is made in house, digital scans are reviewed before production, most restorative cases have a 5 business day standard turnaround, and final restorations carry up to a 7-year warranty. Submit a digital case or call 877-335-5221.

Related Guides

• How to Scan Implants: Scan Bodies, Common Mistakes and What to Send the Lab
• AI Crown Design in Dental Labs: What It Does Well, Where It Fails, and What It Means for Your Cases
• How to Choose a Dental Lab: 7 Questions to Ask Before You Send a Case

FAQ

Is TRIOS or iTero more accurate?

Both are accurate for crowns and quadrants. On full-arch implant models, Lumina beat TRIOS 5 and 6 in most recent lab studies; in patients, TRIOS 4 deviated less than Element 5D on full arches.

Can I send TRIOS scans to Invisalign in the US?

No. 3Shape lists the United States among the countries where TRIOS scans are not approved for Invisalign. iTero scanners integrate with Invisalign.

Which scanners are wireless?

TRIOS 5 and TRIOS 6. TRIOS 3 uses a USB-C cable, and the iTero Lumina and Element 5D wands are corded.

Are the caries detection features FDA cleared?

Yes, as diagnostic aids: iTero NIRI for interproximal caries and 3Shape Dx for caries, wear, recession and plaque.

Do I need a subscription?

Not for TRIOS 6, per 3Shape: after the included first year, TRIOS Only costs $0 per month. Align says iTero needs a service plan after the first year unless an extended plan is bought up front.

Reviewed by Gary Fingerman, founder and CEO of Elegant Dental Laboratory, Brooklyn, New York (founded 2007). Last reviewed: September 28, 2026. Disclosure: Elegant Dental Laboratory is an authorized 3Shape partner. Specifications and prices are the manufacturers' published figures as of September 2026 and can change; confirm them with 3Shape, Align or an authorized reseller before you buy.