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printodent® GR-21.1 Try-In is a biocompatible Class I medical device for the functional try-in of digitally manufactured denture bases. Denture bases with individual tooth arrangement are produced additively in order to check bite registration and occlusion intraorally before the definitive restoration.
After a successful try-in, the definitive denture is created from the GR-14 denture series with GR-17.1 temporary lt as the tooth material – a fully digital denture workflow.
Technical data
| Material type | Biocompatible Try-In resin |
| Indications | Functional try-in of denture bases (bite registration, occlusion) |
| Approval | Class I medical device |
| Workflow | Preliminary stage to the definitive GR-14 denture |
| Property | Requirement | Result | Standard |
| Flexural strength | ≥ 80 MPa | 91 MPa | ISO 178 |
| Modulus of elasticity | ≥ 1600 MPa | 2028 MPa | ISO 178 |
| Elongation at break | – | 8 % | ISO 178 |
| Shore hardness | – | 80 D | ISO 7619-1 |
| Viscosity (23 °C) | – | 0.7 Pa·s | ISO 53019-1 |
| Biocompatibility | Irritation / delayed-type allergies | passed | ISO 10993-10 |
| Biocompatibility | Geno-, carcino-, reproductive toxicity | passed | ISO 10993-3 |
| Biocompatibility | Systemic toxicity | passed | ISO 10993-11 |
| Biocompatibility | Cytotoxicity | passed | ISO 10993-5 |
