# K980968: Lone Star Impression Systems

- Pathway: 510(k) (Traditional)
- Applicant: Lone Star Technologies
- Decided: Jun 9, 1998 after 85 days
- Product code: ELW (Material, Impression)
- Device class: 2
- Regulation: 21 CFR 872.3660
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device 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.

## Indications for use
For use in taking the final Impression of prepared teeth in adult or deciduous teeth when the dentist has determined that a crown or a bridge is needed. The dentist examines the patient and determines the need for a crown or bridge. They then prepare the teeth or “tooth in their usual manner. The two component impression material is then mixed manually or automatically and placed into an impression tray of the dentists’ choosing. The material is then placed in the mouth and allowed to set, approx. 4 minutes, resulting in an impression of the prepared teeth. The resulting impression is then disinfected and a model is poured from this impression for use by the dentlst or dental lab in preparation of the crown or bridge that is to be constructed.

Source page: https://510kreport.com/device/K980968
Methodology: https://510kreport.com/methodology