Containing over 75% filler by weight, Midas Restore brings glass-ceramic and zirconia together in a formulation designed around what matters for definitive restorations: strength where it counts, resistance to occlusal wear, lasting polish and natural aesthetics. The material enables dentists to produce definitive crowns, inlays, onlays and veneers in a single visit using a streamlined digital workflow.

New class of definitive restorative materials

Unlike restorative materials engineered primarily around maximum strength, Midas Restore was designed around the behaviour of a definitive restoration once adhesively bonded to the remaining tooth structure. The design philosophy behind Midas Restore can be summarised as “If we could 3D-print enamel, this is it.” The aim was to create a restorative material that balances polish retention, wear resistance, strength, surface hardness, stiffness and optical performance and that works in concert with the natural tooth.

“Traditional dental 3D printing forces a compromise: the material has to be fluid enough to print, which limits how highly filled it can be,” said Dr Amir Mansouri, co-founder and CEO of SprintRay. “Midas Restore was designed in our materials science lab to address that limitation. By pairing a highly filled formulation containing glass-ceramic and zirconia particles with Midas Digital Press, we can give clinicians access to a new class of definitive restorative materials and bring them into an efficient same-visit workflow.”

Designed around the bonded tooth

For decades, restorative materials have been engineered around bulk strength. Glass-ceramics and zirconia are brittle, so their primary defence against crack propagation is shear strength—which in turn means more tooth reduction and stiffness well beyond what function requires.

Midas Restore takes a different approach. Its resin matrix is designed to arrest cracks rather than simply resist them, and its flexural modulus is closer to that of dentine than to that of glass-ceramics. Once adhesively bonded to the remaining tooth structure, the restoration becomes part of a system in which material and tooth distribute function together, rather than concentrating stress at the interface.

SprintRay laboratory testing demonstrated that Midas Restore retained 98% of its initial gloss after 5,000 simulated toothbrush abrasion cycles and delivered five times the wear resistance of SprintRay Ceramic Crown over 200,000 cycles—wear performance comparable to that of a milled hybrid ceramic. In biaxial flexural strength testing, Midas Restore reached a maximum strength of 215 MPa, the highest of any SprintRay definitive restorative material. The surface hardness was measured at more than 80 HV, comparable to that of a leading nano-filled resin composite used for direct restorations and roughly double that of previous-generation 3D-printed restorative resins. Its translucency parameter was 13.5 for Shade A1, placing it in the same range as the milled high-translucency lithium disilicate material used as a comparator.

“We engineered Midas Restore around how a restoration actually behaves once it is bonded to a tooth, not around a single strength number,” said Hossein Bassir, co-founder and chief product officer at SprintRay. “Filler content, polish retention, wear resistance, modulus and optics are not separate features. They are one system, and the tooth is part of it.”

Made to be pressed

Achieving this combination of properties requires a filler loading that conventional 3D-printing technology cannot process. Highly filled formulations are highly viscous, and viscous material does not flow into a build area on its own.

SprintRay’s Digital Press Stereolithography technology uses pressure to dispense the highly viscous material from a sealed capsule into the build area. This allows Midas to process materials with filler contents of more than 75% by weight—and it is why Midas Restore is engineered exclusively for Midas Digital Press.

Built for same-visit dentistry

Midas Restore brings a definitive restorative material into a streamlined digital workflow encompassing scanning and design, fabrication with Midas Digital Press, post-polymerisation, polishing and bonding. Clinicians can produce multiple units from a single capsule. Post-polymerisation takes 4 minutes, and restorations can be polished to a final finish with two polishing wheels in under 2 minutes—no glazing or firing is required. Midas Restore can also be adjusted, added to and repaired intra-orally before adhesive cementation. The chairside workflow allows delivery of the definitive restoration in a single visit, avoiding the need for a provisional restoration, second appointment or external laboratory fee.

Early clinical evaluation of Midas Restore has demonstrated straightforward finishing and polishing. “Using Midas Restore, I can achieve a beautiful, lasting surface gloss in just two or three quick polishing steps with a standard polishing system,” said Dr Andrew C. Johnson, diplomate of the American Board of Prosthodontics and prosthodontist at OmniSmile Digital Dental Solutions in the US, who participated in the early clinical evaluation of Midas Restore. “That combination of durability, aesthetics and straightforward finishing is what I expect as a clinician from a definitive restorative material. This is an exciting time for digital dentistry.”

Midas Digital Press was introduced in 2024. Since its launch, clinicians across 33 countries have produced more than 100,000 restorations with Midas.

Availability

Midas Restore is now available in the US in Shades A1, A2, A3, B1 and C2. A pack of three single-unit capsules costs US$135 and is available through SprintRay’s online store and authorised distribution partners. The material will also become available in Europe, the Middle East and Africa in November, with a recommended retail price of €95 through authorised resellers.

Midas Restore is validated for use with SprintRay Midas Digital Press and SprintRay NanoCure. In the US, it has Food and Drug Administration 510(k) clearance as a Class II medical device (K260661).

More information about Midas Restore can be found on the SprintRay website.