Containing over 75% filler by way of weight, Midas Repair brings glass-ceramic and zirconia in combination in a system designed round what issues for definitive restorations: power the place it counts, resistance to occlusal put on, lasting polish and herbal aesthetics. The fabric permits dentists to supply definitive crowns, inlays, onlays and veneers in one go to the usage of a streamlined virtual workflow.
New elegance of definitive restorative fabrics
In contrast to restorative fabrics engineered basically round most power, Midas Repair was once designed across the behaviour of a definitive recovery as soon as adhesively bonded to the remainder teeth construction. The design philosophy in the back of Midas Repair will also be summarised as “If lets 3-D-print teeth, that is it.” The purpose was once to create a restorative subject matter that balances polish retention, put on resistance, power, floor hardness, stiffness and optical efficiency and that works in live performance with the herbal teeth.
“Conventional dental 3-D printing forces a compromise: the fabric needs to be fluid sufficient to print, which limits how extremely stuffed it may be,” stated Dr Amir Mansouri, co-founder and CEO of SprintRay. “Midas Repair was once designed in our fabrics science lab to handle that limitation. Via pairing a extremely stuffed system containing glass-ceramic and zirconia debris with Midas Virtual Press, we will give clinicians get right of entry to to a brand new elegance of definitive restorative fabrics and produce them into an effective same-visit workflow.”
Designed across the bonded teeth
For many years, restorative fabrics had been engineered round bulk power. Glass-ceramics and zirconia are brittle, so their number one defence towards crack propagation is shear power—which in flip method extra teeth aid and stiffness well past what serve as calls for.
Midas Repair takes a unique manner. Its resin matrix is designed to arrest cracks slightly than just withstand them, and its flexural modulus is nearer to that of dentine than to that of glass-ceramics. As soon as adhesively bonded to the remainder teeth construction, the recovery turns into a part of a device wherein subject matter and teeth distribute serve as in combination, slightly than concentrating tension on the interface.
SprintRay laboratory trying out demonstrated that Midas Repair retained 98% of its preliminary gloss after 5,000 simulated toothbrush abrasion cycles and delivered 5 instances the wear and tear resistance of SprintRay Ceramic Crown over 200,000 cycles—put on efficiency similar to that of a milled hybrid ceramic. In biaxial flexural power trying out, Midas Repair reached a most power of 215 MPa, the best of any SprintRay definitive restorative subject matter. The outside hardness was once measured at greater than 80 HV, similar to that of a number one nano-filled resin composite used for direct restorations and more or less double that of previous-generation 3-D-printed restorative resins. Its translucency parameter was once 13.5 for Color A1, putting it in the similar vary because the milled high-translucency lithium disilicate subject matter used as a comparator.
“We engineered Midas Repair round how a recovery if truth be told behaves as soon as it’s bonded to a teeth, now not round a unmarried power quantity,” stated Hossein Bassir, co-founder and leader product officer at SprintRay. “Filler content material, polish retention, put on resistance, modulus and optics aren’t separate options. They’re one device, and the teeth is a part of it.”
