Apex Flex Partial Dentures
ROE has partnered with SprintRay to offer Apex Flex™, a biocompatible, FDA Class II 510(k)-cleared resin engineered specifically for 3D printing flexible partial denture bases.
Using an advanced digital workflow, the denture base and teeth are fabricated together directly from your digital file, delivering exceptional accuracy, consistency, and fit while reducing the variability of traditional thermoplastic processing.
With high flexural strength over 26.5 MPa, over 50% elongation at break, and exceptional fracture resistance, Apex Flex offers the flexibility patients appreciate while resisting the breakage common with conventional acrylic partials.
The completely metal-free design features tissue-colored flexible clasps instead of visible cast metal, creating a more natural-looking restoration for patients seeking superior esthetics.
Ideal for tooth-supported partial dentures, Apex Flex delivers lightweight, comfortable restorations with a precise digital fit. Our Certified Dental Technicians are available to assist with complex case planning and clasp design.
Clinical Benefits Apex Flex Partial Dentures
- Metal-Free Esthetics – Tissue-colored flexible clasps eliminate visible metal, while natural translucency allows for a accurate gingiva blend
- Exceptional Durability – Designed to resist cracks and fractures that often damage traditional acrylic partials
- Support Without Rigidity — A ≥700 MPa flexural modulus maintains structural support while adapting to functional movement, reducing the pressure points characteristic of rigid acrylic frameworks
- Printed Base and Teeth Together — Base and teeth are printed in a single job and chemically bonded rather than mechanically retained
- Digital File Storage – Every case is designed from a digital scan and archived, making future remakes, replacements, or modifications faster and more predictable
- Biocompatible Material – FDA Class II 510(k)-cleared and completely metal-free, Apex Flex is an excellent option for patients with sensitivities to common dental metals or acrylic monomers
- Conservative Treatment – Flexible retention often minimizes the need for extensive tooth preparation, helping preserve more of the patient's natural dentition
Product Specifications

| Description | A digitally fabricated, metal-free removable partial denture for a precise, durable restoration. Tissue-toned flexible clasping and high fracture resistance offer patients a comfortable, esthetic alternative to cast metal frameworks and traditional acrylic partials. |
| Days In Lab | ***Need to confirm |
| Tooth Shades | • Standard Pink and Light pink ***Need to confirm — Does ROE offer other shade options?] |
| Patient Visits (est.) | 2 |
| Applications | • Tooth-supported partial dentures • Anterior esthetic partial replacement • Unilateral partial replacement • Transitional partials during implant integration • Replacement of a lost or fractured existing partial • Patients with metal or acrylic monomer sensitivity |
| Materials | • SprintRay Apex Flex printed flexible partial base • SprintRay Apex Teeth printed denture teeth |
| Benefits | • Metal-free aesthetics and exceptional fracture resistance in a fully digital, archivable workflow |
| Records | • Full-arch scan of the upper, lower, and bite • Scans exported in occlusion • Complete capture of soft tissue and remaining dentition • Tooth shade and base shade preference • Note any teeth planned for future extraction or implant placement |
| Preparation |
• Minimal to no preparation required in most cases |
| Seating | • Adjustments should be none to minimal. Adjust and re-polish at low speed |
| Warranty | ***Need to confirm |
| Insurance Codes | ***Need to confirm |
| Pricing |
Titanium Partial Dentures: Frequently Asked Questions
Downloadable Resources
Video Resources
How to 3D Print Partial Dentures: Complete SprintRay Apex Flex & Duo Kit Workflow
Partial Denture Offerings - Product Comparison
| Wear | Esthetics | Strength | Price | Lab Days | Materials | Benefits | |
|---|---|---|---|---|---|---|---|
| SLM Cobalt Chrome Partial | ★★★★ | ★★★ | ★★★★ | $$$ | 12 | • SLM frame (Cobalt Chrome) • Acrylic • Denture teeth • Clasps (multiple options available) |
• High strength • Durable |
| SLM Titanium Partial | ★★★★★ | ★★★★ | ★★★★★ | $$$ | 13 | • SLM frame (Titanium) • Acrylic • Denture teeth • Clasps (multiple options available) |
• High strength |
| Acetal Partial | ★★★★ | ★★★★★ | ★★★ | $$$ | 12 | • Acetal resin (milled) • Denture teeth • Clasps (multiple options available) |
• Alternative for patients with allergies to other materials • Durable |
| Thermoplastic Partial | ★★★ | ★★★★★ | ★★★★★ | $$$ | 8 | • Flexible thermoplastic • Denture teeth • Clasps (multiple options available) |
• Flexible • Added comfort |
| Thermoplastic Partial Hybrid | ★★★ | ★★★★ | ★★★★★ | $$$$ | 12 | • SLM frame (printed metal) • Flexible thermoplastic • Denture teeth • Clasps (multiple options available) |
• Flexible • Added comfort • Additional strength |
| All Acrylic Partial (Flipper) | ★★ | ★★★ | ★★ | $$$ | 5 | • Acrylic • Denture teeth • Clasps (wrought wire or esthetic) |
• Lightweight • Economical |
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ROE’s experts are dedicated to elevating your dental practice.
- Full-service national dental laboratory
- Comprehensive Certified Dental Laboratory (CDL) services
- Case planning support from 20+ Certified Dental Technicians
- Specialists in both fixed, removable, implant and full-arch dentistry
- Tailored support for all cases, from routine to complex
- National Association of Dental Laboratories (NADL) member
- Only FDA-approved materials used
- All products made in the USA
- Thousands of free online education materials


