Cleared Traditional

K173784 - Smylic Invisible Clear Aligners (FDA 510(k) Clearance)

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

K173784 · Smylio, Inc. · Dental device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Aug 2018
Decision
253d
Days
Class 2
Risk

K173784 is an FDA 510(k) clearance for the Smylic Invisible Clear Aligners. Classified as Aligner, Sequential (product code NXC), Class II - Special Controls.

Submitted by Smylio, Inc. (Fremont, US). The FDA issued a Cleared decision on August 23, 2018 after a review of 253 days - an extended review 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Dental review framework, consistent with the majority of Class II 510(k) submissions.

View all Smylio, Inc. devices

Submission Details

510(k) Number K173784 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 13, 2017
Decision Date August 23, 2018
Days to Decision 253 days
Submission Type Traditional
Review Panel Dental (DE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
126d slower than avg
Panel avg: 127d · This submission: 253d
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 K173784.
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