# K970339: Tri Auto ZX

- Pathway: 510(k) (Traditional)
- Applicant: J. Morita USA, Inc.
- Decided: Jun 4, 1997 after 126 days
- Product code: EKX (Handpiece, Direct Drive, Ac-Powered)
- Device class: 1
- Regulation: 21 CFR 872.4200
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
283 later devices descend from it; 7 cite it directly.
0 of 284 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K012511: Waterlase Millennium (2002), 246 descendants of its own
- K021508: Opusduo EC Dental Laser System (2002), 240 descendants of its own
- K040270: Opusduo; Opusduo E; Opusduo EC; Opus 20; Opus Spectrum (2004), 226 descendants of its own
- K060033: Profile Multi-Platform System (2006), 221 descendants of its own
- K073063: 15W Ceralas D 1470NM Diode Laser (2008), 202 descendants of its own

## Indications for use
The TRI AUTO ZX device is a cordless endodontic treatment motorized handpiece with root canal measurement capability. It can be used to enlarge canals while monitoring the position of the file tip inside the canal. It can be used to measure the length of the canal, and it can be used as a low speed motorized handpiece.

Source page: https://510kreport.com/device/K970339
Methodology: https://510kreport.com/methodology