# K971774: NSK Push-Button Midwest Replacement Turbine:for Quietair and Tradition

- Pathway: 510(k) (Traditional)
- Applicant: Nsk Nakanishi, Inc.
- Decided: Jun 20, 1997 after 38 days
- Product code: EFB (Handpiece, Air-Powered, Dental)
- 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.
1 later device descends from it; 1 cites it directly.
0 of 2 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
- K100389: HHC Push-Button Replacement Turbine for Midwest Tradition Handpiece Model MW Turbine Replacement (2010), 0 descendants of its own

## Indications for use
The devices claimed herein are the air turbines only, and are not the handpiece itself. The devices are intended for use in the Midwest's Quiet-Air or Tradition handpieces, in place of Midwest's original turbines. The device, therefore, is, with Midwest handpiece, intended for use in general dental applications; such as cutting a tooth for crown preparation, cavity preparation, finishing the crown, inlay or the filling, etc.

Source page: https://510kreport.com/device/K971774
Methodology: https://510kreport.com/methodology