# K945734: W&H Roto Quick Couplings

- Pathway: 510(k) (Traditional)
- Applicant: A-Dec, Inc.
- Decided: Oct 5, 1995 after 316 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.
9 later devices descend from it; 1 cites it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K152146: High Speed Handpieces and Accessories (2015), 8 descendants of its own
- K170229: Dental High-speed Turbine Handpiece (2017), 4 descendants of its own
- K181691: High-speed air turbine handpiece / Low-speed air turbine handpiece (2020), 2 descendants of its own
- K220179: High-Speed Air Turbine Handpieces/Straight Handpieces/Geared Angle Handpieces/Air Motors (2023), 1 descendant of its own
- K251389: High speed air turbine handpiece (2026), 0 descendants of its own

Source page: https://510kreport.com/device/K945734
Methodology: https://510kreport.com/methodology