KeySplint Hard™ is a high-performance, biocompatible photopolymer resin engineered for 3D printing of rigid dental appliances. Designed for DLP/LCD printers operating at 385–405 nm, this resin enables efficient and precise production of nightguards, splints, retainers, bite planes, and more. 

🌟 Why KeySplint Hard Stands Out

• Rigid & Reliable Strength — Offers high flexural strength (≈ 60–65 MPa ISO 20795-2) and flexural modulus (≈ 1510–1600 MPa), ensuring a stable, long-lasting appliance. 

• Abrasion- and Stain-Resistant — Durable against wear and discoloration, ideal for nightguards or splints exposed to daily use. 

• Biocompatible & Certified — Cleared by the U.S. Food and Drug Administration (FDA 510(k)), approved by Health Canada, and CE-marked (Class IIa) for safe intraoral use. 

• Compatible with Many Printers — Works with a wide range of open-source and commercial DLP/LCD 3D printers. 

• Ideal for Multiple Dental Applications — Perfect for nightguards, splints, bite plates, retainers, snoring devices, and post-trauma tooth immobilization appliances. 

✅ Best For

Dental labs and clinics looking to produce rigid, long-lasting dental appliances with:

• High structural integrity

• Excellent wear and abrasion resistance

• Consistent, repeatable 3D printing results

• Certified biocompatibility and safety

Validated Printers: Ackuretta Denti, Ackuretta FreeShape , Ackuretta SOL, Ackuretta SOL Plus, Anycubic Photon Mono X 6Ks, Anycubic Photon Mono M5 , Asiga® MAX, Asiga® MAX 2, Asiga® PRO 4k, Asiga® Ultra, Elegoo Mars 3 Pro 4k, Microlay Eve, Microlay Versus, MiiCraft 125, MiiCraft Ultra, Nexa3D NXD200, Nexa3D XiP, Phrozen Sonic Mini 4k, Phrozen Sonic XL 4k, Rapid Shape (D20+, D30+, D20II, D30II, D40II), Rapid Shape (D70, D90, D100), RayShape® Shape 1, Roland® 3DXPRINT, SHINING 3D® AccuFab-D1/D1s, SHINING 3D® Accufab-L4D, Structo ST-01, Sisma Everes UNO, Uniz Slash 2, Zortrax Inkspire 2 Clinical

Validated Printers for KeySplint® Hard - Clear: Ackuretta Dentiq, Ackuretta SOL, Ackuretta SOL Plus, Anycubic Photon Mono X 6Ks, Anycubic Photon Mono M5, Asiga® MAX, Asiga® PRO 4k, Carbon® M1/M2 Series, Carbon® M3 Series, Desktop Health Einstein, Elegoo Mars 3 Pro 4k, HeyGears A2D, HeyGears A2D HD, HeyGears ChairSide Pro, HeyGears Ultracraft A3D, Nexa3D NXD200, Phrozen Sonic Mini 4k, Phrozen Sonic XL 4k, Planmeca Creo C5, Rapid Shape D20+, D30+, D20II, D30II, D40II, RayShape® Shape 1, Roland® 3DXPRINT, SHINING 3D® Accufab-L4D, SprintRay Pro, SprintRay Pro 2, SprintRay Pro 95s, Stratasys Origin One Dental, Sisma Everes UNO

Validated Printers for KeySplint® Hard - Pink: Asiga® MAX, Carbon® M1/M2 Series