# K071548: Wieland Zeno Cao Temporary Pmma Disc, Tooth-Colored

- Pathway: 510(k) (Traditional)
- Applicant: Merz Dental GmbH
- Decided: Aug 21, 2007 after 76 days
- Product code: EBG (Crown And Bridge, Temporary, Resin)
- Device class: 2
- Regulation: 21 CFR 872.3770
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K924830 (1994). 3 ancestors in all.
211 later devices descend from it; 5 cite it directly.
0 of 215 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K061809: Artegral Imcrown, Merz Dental GmbH (2006)
- K060293: Temporary Crown and Bridge Material, Dentsply International, Inc. (2006) Summary page 1.

## Most influential descendants
- K120822: Straumann Cares Variobase Abutment NNC, Straumann Cares Variobase Abutment RN, Straumann Cares Variobase Abutment WN, ST (2012), 165 descendants of its own
- K150203: Medentika CAD/CAM Abutments (2015), 129 descendants of its own
- K150367: Neodent Implant System (2015), 89 descendants of its own
- K170588: DESS Dental Smart Solutions (2017), 86 descendants of its own
- K173908: DESS Dental Smart Solutions (2018), 51 descendants of its own

## Indications for use
For use as a milling blank in the fabrication of provisional crowns and bridges.

Source page: https://510kreport.com/device/K071548
Methodology: https://510kreport.com/methodology