# K091390: HDC Sterile Self Ligating Spider Screw, Model Sli,SL2

- Pathway: 510(k) (Special)
- Applicant: Hdc S.R.L.
- Decided: Jul 30, 2009 after 80 days
- Product code: OAT (Implant, Endosseous, Orthodontic)
- Device class: 2
- Regulation: 21 CFR 872.3640
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 8 generations back to K894844 (1990). 23 ancestors in all.
No later device cites it as a predicate yet.
0 of 24 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K071851: HDC Sterile Spider Screw, Hdc S.R.L. (2007) Summary page 2.

## Indications for use
The Sterile Self Ligating Spider Screw is a threaded titanium dental implant screw, intended to serve as a fixed anchorage point for attachment of orthodontic appliances to facilitate the orthodontic movement of the teeth. The device is used temporarily and shall be removed after orthodontic treatment has been completed. It is provided sterile and is intended for single use only.

Source page: https://510kreport.com/device/K091390
Methodology: https://510kreport.com/methodology