Cleared Traditional

K232233 - Invisalign System with Mandibular Advancement Featuring Occlusal Blocks (FDA 510(k) Clearance)

Class II Dental device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K232233 · Align Technology, Inc. · Dental device
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Sep 2023
Decision
61d
Days
Class 2
Risk

K232233 is an FDA 510(k) clearance for the Invisalign System with Mandibular Advancement Featuring Occlusal Blocks. Classified as Aligner, Sequential (product code NXC), Class II - Special Controls.

Submitted by Align Technology, Inc. (San Jose, US). The FDA issued a Cleared decision on September 26, 2023 after a review of 61 days - a notably fast clearance cycle.

This device falls under the Dental FDA review panel, regulated under 21 CFR 872.5470 - the FDA dental device regulatory framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Align Technology, Inc. devices

Submission Details

510(k) Number K232233 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 27, 2023
Decision Date September 26, 2023
Days to Decision 61 days
Submission Type Traditional
Review Panel Dental (DE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
66d faster than avg
Panel avg: 127d · This submission: 61d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code NXC Aligner, Sequential
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 872.5470
Definition The Device Moves The Teeth By Continuous Gentle Force For Treatment Of Minor Tooth Malocclusion.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Dental devices follow this clearance model.

Regulatory Peers - NXC Aligner, Sequential

All 142
Devices cleared under the same product code (NXC) and FDA review panel - the closest regulatory comparables to K232233.
SureSmile Aligner (ASSY500020)
K260722 · Dentsply Sirona, Inc. · Apr 2026
ZSmile System
K253282 · Dror Orthodesign , Ltd. · Feb 2026
Clear Aligner (SCF-3348)
K251454 · Beame Medical Technology (Shenzhen) Limited · Jan 2026
Primeprint Direct Aligner
K250739 · Dreve Dentamid GmbH · Nov 2025
Invisalign® Palatal Expander System
K252931 · Align Technology, Inc. · Oct 2025
Invisalign Specifix Attachment System
K252870 · Align Technology, Inc. · Oct 2025