Lithuanian manufacturer AmeraLabs has introduced three European-made dental photopolymers: CIT-25 for custom impression trays, SGR-28 for surgical guides and TRY-23 for restorative try-ins. They address separate workflows rather than forming one universal resin for every intraoral use.

The manufacturer reports EU Class I status, evaluation under ISO 10993-1 and non-cytotoxic, non-sensitising and non-irritating results when the relevant instructions are followed. This is conditional: incorrect exposure, washing or post-curing can change residual monomer and biological risk.

CIT-25: custom impression trays

CIT-25 can be printed at layers up to 200 µm and is described as compatible with silicone and alginate impressions without separator. A rigid tray must fit, but edges, handle, perforations and deformation still require checking before clinical use. Drilling and trimming do not replace geometric acceptance.

SGR-28: surgical guides

Translucent SGR-28 is listed at Shore D 85. It targets tooth-, mucosa- and full-arch-supported guides and metal or polymer sleeves. Stiffness and visibility are useful, but sleeve fit, drill axis and sterilisation compatibility must be fixed in each validated workflow.

TRY-23: a try-in, not a definitive restoration

TRY-23 supports trial prostheses for checking form, occlusion, phonetics and aesthetics before definitive production. That role does not make the part suitable for permanent wear; intended use and permitted contact time come from the IFU.

The printer profile is part of the authorised process

Printability is insufficient for a dental resin. Printer, wavelength, layer, exposure, orientation, solvent, wash time, drying, post-curing unit and temperature form one validated chain. A home-made profile for an unlisted machine does not automatically carry equivalent compliance.

A lab or clinic should record batch, profile, wash and cure cycle, equipment maintenance and release. Cleanliness and complete cure cannot be judged by touch alone.

Verified fact and vendor claim

The three launches, intended uses and technical descriptions are verified on official pages. Biological and mechanical performance applies to AmeraLabs' tests and prescribed process; LAYERTIMES has not conducted independent clinical or laboratory testing.

Editorial conclusion

The portfolio's strength is application-specific separation. A lab should decide from supported printers and curing units, local regulatory files, repeatable fit and full workflow cost rather than resin price per litre alone.

Three indications are not interchangeable

AmeraLabs says all three materials make short-term removable dental appliances, but contact time and mechanical function differ. CIT-25 covers full or sectional edentulous, dentulous and implant impression trays; SGR-28 covers tooth- or mucosa-supported, partial and full-arch surgical guides; TRY-23 covers try-ins, occlusion and fit checks. Evidence for one product cannot automatically be transferred to another indication.

SGR-28 translucency may help visual seating checks, while Shore D 85 hardness and high flexural strength target rigid drill guidance. The vendor states compatibility with metal and polymer sleeves and autoclaving after its specified post-process. A real guide still needs combined acceptance of the sleeve bore, axis, support surface and post-sterilisation geometry.

TRY-23 has a vendor-stated flexural modulus above 2 GPa, low water absorption and A1, A2, B1 and B2 shades. These properties may support shape retention, transport and rescanning, but do not make it a definitive restoration. It can be cut, stained and polished; every modification needs control so it is not confused with the approved baseline workflow.

An open system still needs a validated profile

The three resins target 385 and 405 nm light sources and LCD/LED or DLP systems. AmeraLabs names several printer makers and supplies starting profiles, but wavelength compatibility is not full validation. The lab must connect supported machine, layer, exposure, orientation, washing, drying, post-cure, sterilisation and dimensional inspection under control.

CIT-25 is advertised for accurate printing at layers up to 200 µm and, after correct processing, as not inhibiting silicone or other common impression materials without separator spray. A local compatibility test with the actual impression material is still necessary because the clinical chain extends beyond the printed tray.

Adoption and release plan

A minimum adoption package includes the current IFU and conformity documents, supported machine and profile version, lot identity, mixing rules, wash solvent and change limit, drying, calibrated post-cure, sterilisation where applicable, a geometric reference and deviation control. Patient-contacting devices should be released only after documented visual, dimensional and cleanliness checks.

Manufacture in an ISO 13485-certified facility and EU Class I marking are important verified controls, not substitutes for the user's procedure. Biocompatibility applies to a device printed, washed and fully post-cured according to instructions. LAYERTIMES concludes that value comes from a clear indication and reproducible complete workflow rather than raw resin properties alone.

Sources

- AmeraLabs: Introducing three new European-made dental resins — primary manufacturer release, 3 September 2026. - AmeraLabs: Dental resin product pages and instructions — product and process data; checked 6 October 2026.