Frasaco ST-5K-311 – Transparent strip crowns, lower left central incisor, size 311, pack of 5
Frasaco strip crowns are elastic, thin and easy-to-cut celluloid crowns; in the transparent execution they transmit polymerisation light. They are used as moulds for temporary restorations on preparations and as matrices for restoring corners and edges, also with composites. Class I medical device for single use; never leave in the mouth for more than 30 days. Each ST-5K refill box contains 5 transparent crowns of the same size.
Reference ST-5K-311: lower left central incisor, size 311. Frasaco numbering: 1st digit = quadrant, 2nd = tooth position, 3rd = size.
Technical specifications
| Tooth | 31 – incisive centrale inférieure gauche |
| Size | 311 |
| Size range for this tooth | 311 à 313 |
| Pack | Boîte de recharge, 5 couronnes de la même taille |
| Material | Celluloïd, transparent (perméable à la lumière de polymérisation) |
| Included in assortments | ST-FK174, ST-FBK 58 |
| Regulatory status | Dispositif médical classe I, usage unique |
| Maximum time in mouth | 30 jours |
| Country of origin | Allemagne (DE) |
| Customs code (Intrastat) | 90212900 |
Frequently asked questions
How do I read the reference?
1st digit = quadrant, 2nd = tooth position, 3rd = size. ST-5K-311 is therefore tooth 31 (lower left central incisor), size 311.
How long can a strip crown stay in the mouth?
Never more than 30 days. If it stays for a few days, its gingival edge must be no deeper than 1 mm inside the sulcus.