Introducing SprintRay OnX Tough 2, a groundbreaking dental 3D printing resin for use in creating fixed hybrid dentures. This resin leverages the cutting-edge NanoFusion™ technology, which set a new industry
standard by offering exceptional durability and visual quality.

The result is a remarkably natural appearance that closely resembles natural enamel.
OnX Tough 2 empowers dental professionals to fabricate fixed hybrids
chairside while rivaling milled PMMA material qualities – all without extra
mixing or rolling. OnX Tough 2 ensures unmatched strength and
high-quality aesthetics, streamlining the process for increased efficiency
and fewer appointments.
500g bottles available now in: A1, A2, B1, Bleach and Hollywood White.

Full Arch Implant Rehabilitation
Rehabilitation of full arch edentulous patients was the primary reason and indication
for dental implants back in 1977 when Branemark introduced the osseointegration
process and endosseous dental implants.
Rehabilitation of patients with the need for full arch implant supported prosthesis
(often called hybrid prosthesis) has been growing rapidly among dental practitioners
and is demanded by many patients nationwide.
1
This treatment enables restoration of
function and aesthetics in very reasonable timeframes. The current trend in implant
rehabilitations is to develop materials to improve the aesthetics and mechanical
properties, reduce treatment time, and ultimately simplify treatment procedures.2
Conventional Methods of Hybrid Denture Fabrication
Conventionally, the provisional prosthesis delivered to patients during the healing
period would be fabricated by connecting temporary cylinders to a premade
PMMA based prosthesis. This procedure, which is performed either on the day of
surgery in case of immediate loading, or at a later time when the implants are fully
osseointegrated. In case of delayed loading, it is time consuming and can cause
discomfort for patients. However, introduction of CAD/CAM in dentistry and
improvements in digital dentistry workflows has enabled clinicians to reduce the
postoperative complications, improve the patient satisfaction, and provide more
predictable treatment outcome.
3
To date, the search for optimum material is
ongoing and constant research and innovation has created very unique materials
applicable for full arch implant rehabilitations.

Flexural Strength and Flexural Modulus
Objective
This study evaluated the flexural strength and flexural modulus of the samples
printed with available dental 3D printing hybrid denture materials in the market.
This study provides a valuable insight into the mechanical properties of these
3D printed resins.
Materials and Methods
For this evaluation, bars with 4 mm thickness, 12.7 mm width, and 125 mm length
were fabricated according to the ASTM D790. For this test the support span was
set at 64 mm. Moreover, bars with 2 mm thickness, 2 mm width, and 25 mm length
dimensions were fabricated according to the ISO 4049 standard. For this test the
support span was set at 20 mm. The materials printed for this study were OnX Tough
2 (SprintRay), Flexcera Smile Ultra Plus (Desktop Health), Rodin Sculpture (Pac-Dent),
and Trusana (Myerson). All samples were printed and cured according to the
manufacturer’s IFU.

https://sprintray.com/en-uk/?mtm_campaign=Sprintray%20UK&gad_source=1&gclid=Cj0KCQiA_NC9BhCkARIsABSnSTa06wyG2wptVjTVTgDqtqSBAY_sfNXpinram8Tn4L_EHM88ULmGI6waAnzvEALw_wcB 

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Uses and Advantages

• Cost effective for try-in dentures
• Exceptional surface quality
• Easy to characterize
• Polishes to high luster
• Biocompatible medical device
• Free of MMA, BPA, and phthalates

Key Denture Try-In takes the uncertainty out of the denture fitting process. Designed for precision and efficiency, KeyDenture Try-In is a photopolymer resin indicated for 3D printing of biocompatible, short-term trial dentures, intended for evaluation of fit, occlusion, esthetics, and phonetics during try-in appointments.

Indications for Use: KeyPrint KeyDenture Try-In is
indicated for the fabrication of trial dentures for try-in
verification, including full and partial removable/fixed
dentures.
Product Description: KeyPrint KeyDenture Try-In is a
light-curing resin for the 3D printing of biocompatible trial
dentures for use with DLP printers (385-405nm).

Color A1, B1, BL4

Density 1.0–1.15 g/cm3
Viscosity ~360 cP @ 25C CHARACTERISTICS
Flexural Strength ASTM D790 > 56 MPa* 56-68 MPa
Flexural Modulus ASTM D790 > 1400 MPa* 1500-1750 MPa
Elongation at Break ASTM D638 >12% 30-43%
Shore D Hardness ASTM D2240 > 80D 80D
Water Sorption ISO 20795-1 < 32 ug/mm3 9-13 ug/mm3
Water Solubility ISO 20795-1 < 5 ug/mm3 1.10 ug/mm3

https://keyprint.keystoneindustries.com/wp-content/uploads/2025/02/keyprint_catalog_2025_r1.pdf

Our KeyPrint Journey

In an industry that is increasingly defined by the ability to innovate, adapt, and produce consistent
results, Keystone Industries introduced KeyPrint in 2018, a line of precision 3D resins specifically
formulated for the dental industry. Keystone has innovatively combined its unique blend of dental
and photopolymer expertise to deliver the highest quality 3D printing resins to the dental market.
Entirely designed and produced in the USA, the full KeyPrint line is available throughout North
America, Europe, and other global territories. KeyPrint resins are compatible with DLP, LED and
LCD printers (wavelengths of 385-405 nm). Keystone is validating 3D printers on an ongoing basis
to ensure our KeyPrint resins work reliably in multiple open-source printers.
Prioritizing clinical results and patient safety, KeyPrint resins are subjected to a battery of
biocompatibility tests in accordance with global regulatory standards. Each biocompatible
print complies with international standards to ensure efficacy and effectiveness for the patient.
KeyPrint’s robust formulations guarantee a 3-year shelf life for the bottle of resin, along with

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