- This is a light-curing 3D printing resin used for fabricating dental and orthodontic appliances with biocompatible properties
Uses
- Fabricating appliances:
- The resin is specifically for 3D printing flexible and biocompatible dental devices
- Nightguards and occlusal splints:
- It is commonly used to create nightguards and occlusal splints for patients with bruxism
- Mouthguards and repositioners:
- It can also be used for mouthguards and repositioners, offering added flexibility for improved patient comfort
- Bleaching trays:
- The resin is suitable for making bleaching trays
- General dental and orthodontic devices:
- It can be used for a wide variety of orthodontic and dental appliances
Features
- Biocompatible:
- KeySplint Soft is a biocompatible material and is in compliance with international medical device regulations and standards
- Strong and flexible:
- The material is strong enough to protect teeth against disorders like bruxism but also offers added flexibility for better patient comfort
- Transparent and color-stable:
- The resin is transparent, polishes well, and is color-stable and stain-resistant
- High performance:
- The resin formulation is robust, offering a long shelf life and consistent performance
- Optimized for 3D printing:
- It is a DLP-optimized resin designed for use with specific 3D printers, often for Carbon M-series printers
Specifications:
- Physical properties
- Color: Clear/transparent
- Density: 1.0–1.1 g/cm³
- Viscosity: 600–800 cP
- Hardness: 80–85 Shore D
- Elongation at Break: >100%
- IZOD Impact (Notched): 45–48 J/m (ASTM D256)
- Mechanical properties
- Flexural Strength: 38–44 MPa (ASTM) and 2.6–4.5 MPa (ISO)
- Ultimate Flexural Strength: 2.6–4.4 MPa (ISO 20795-2)
- Flexural Modulus: 1,000–1,200 MPa (ASTM) and 135–200 MPa (ISO 20795-2)
- Tensile Strength: 52 MPa (ASTM D638)
- Tensile Young's Modulus: 1790 MPa (ASTM D638)
- Performance and safety
- Biocompatibility: KeySplint Soft is a biocompatible Class IIa certified resin and complies with ISO 10993 and ISO 20795-2 standards
- Water Sorption: < 18 μg/mm³ (ISO 20795-2)
- Water Solubility: < 4.8 μg/mm³ (ISO 20795-2)
- Stain-resistance: The material is resistant to staining
- Open-source printer compatibility: It is compatible with many open-source DLP, LED, and LCD printers that use a light source in the 385–405nm range
Printer Validation
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Keystone has validated KeySplint Soft for use with many popular dental and open-source 3D printer platforms including:
- Ackuretta: SOL, SOL Mono, and DENTIQ
- Anycubic: Photon Mono X 6Ks, Photon Mono M5
- Asiga: MAX and PRO 4K
- B9 Creation: Dent XL (385nm)
- Carbon: M1/M2 and M3 Series (385nm)
- Carbon also offers an exclusive version of KeySplint Soft optimized for its platform
- Desktop Health: Einstein
- Elegoo: Mars 3 Pro 4k (385nm)
- HeyGears: A2D, A2D 4K, ChairSide Pro, Ultracraft A3D (385nm) and ChairSide
- LuxCreo: iLux Pro and Lux 3D+ printers
- Microlay: Eve (405 nm) and Versus (385nm)
- Nexa3D: NXD200, XiP
- Phrozen, Sonic XL4k, Sonic Mini 4k, and SOnic XL 4k
- Planmeca: Creo C5
- Original Prusa: Medical One (405nm)
- Rapid Shape: D20+, D30+, D20II, D30II, D40II (385nm)
- RayShape: Shape 1
- Roland®: 3DXPRINT
- Shining 3D: Accufab-L4D
- Sisma: Everes UNO (405nm)
- SprintRay: Pro, Pro 2
- Straumann: P Series printers
- Stratasys: Origin One Dental
- W2P: SolFlex and SolLab printers (385nm)
- Zortrax: Inkspire 2
