# K191837: UniSmile Clear Aligner System

- Pathway: 510(k) (Traditional)
- Applicant: Vitang Technology, LLC
- Decided: Jan 29, 2020 after 204 days
- Product code: NXC (Aligner, Sequential)
- Device class: 2
- Regulation: 21 CFR 872.5470
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K780619 (1978). 7 ancestors in all.
No later device cites it as a predicate yet.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K113618: Clearcorrect System, Clearcorrect, Inc. (2012) Summary page 4.

## Indications for use
The UniSmile Clear Aligner System is indicated for the treatment of tooth malocclusion in patients with permanent dentition. The UniSmile Clear Aligner System positions teeth by way of continuous gentle force.

Source page: https://510kreport.com/device/K191837
Methodology: https://510kreport.com/methodology