# K173379: Straumann Variobase for Crown AS

- Pathway: 510(k) (Traditional)
- Applicant: Institut Straumann AG
- Decided: Mar 30, 2018 after 151 days
- Product code: NHA (Abutment, Implant, Dental, Endosseous)
- Device class: 2
- Regulation: 21 CFR 872.3630
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 15 generations back to K894844 (1990). 188 ancestors in all.
No later device cites it as a predicate yet.
0 of 189 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K142890: Straumann Variobase Abutment NNC, Straumann Variobase Abutment RN, Straumann Variobase Abutment WN, Straumann Variobase Abutment NC, Straumann Variobase Abutment RC, IPS e.max CAD MO Coping, IPS e.max CAD LT Crown, IPS e.max CAD HT Crown, coron CoCr Single Unit, Straumann USA, LLC (2015) Summary page 4.

## Indications for use
The Straumann® Variobase® for Crown AS is a titanium base placed onto Straumann dental implants to provide support for customized prosthetic restorations. Straumann® Variobase® for Crown AS are indicated for screw retained single tooth or cement-retained single tooth and bridge restorations. A temporary restoration can be used prior to the insertion of the final components to maintain, stabilize and form the soft tissue during the healing phase. Temporary restorations are indicated to be placed out of occlusion. All digitally designed copings and/or crowns for use with the Straumann Variobase® for Crown AS are intended to be sent to Straumann for manufacture at a validated milling center.

Source page: https://510kreport.com/device/K173379
Methodology: https://510kreport.com/methodology