Sprintray Crown HT
Make no mistake, Sprintray is the crown jewel of chairside 3D printing. With slick workflows and industry-leading materials, this company is truly in it to win it.
When it comes to 3D printing of definitive restorations, the Midas is a true market leader. While the attention is all on the new Midas Restore resin, a resin that “you’re not supposed to be able to print”, realistically most users outside the US won’t have access to that well into 2027 or even later. As a result, I still feel Crown HT is the current jewel of 3D printed restorative resins for the majority of global users.
Uses:
Printing of single unit (definitive and provisional) restorations e.g. crowns, inlays, onlays, veneers
Where can you print it:
Sprintray Midas-exclusive
The low down:
Crown HT is composed of 60% ceramic filler by weight and prints very consistently on the Midas. In fact due to its thicc-ness, it really should be printed on this unit only. It polishes up beautifully and is highly translucent compared to the competition. I’ve also found Sprintray restorative resins more stain-resistant compared to other similar products on the market – this is essential for 3D printed definitive veneers.
Points to note:
Due to its high ceramic content, care should be taken when cleaning this resin – ideally use air where possible rather than alcohol. I find 70% IPA wipes to be pretty safe to use when cleaning printed Crown HT restorations. It is very easy to overwash and cause chalking of the surface. Also take should be taken when removing the supports from prints – when fresh out of the printer, it’s quite easy to damage your prints when peeling supports away. I’d recommend using a thin bur to remove supports cleanly and efficiently. Crown HT looks beautiful even when just polished and will polish with standard composite and PMMA polishing systems. It is radioopaque but not exceedingly so, making it very useful for single implant-borne provisionals. I do wish it came in more shades. Currently Crown HT only comes in shades A1, A2, B1 and Bleach. Must be cured in a Nanocure.
TLDR:
Crown HT is a great resin for single-unit printed restorations and is the current market leader. Care should be taken when handling this highly filled resin fresh out of the Midas.