What makes Ivotion stronger than conventional and bonded dentures?

Ivotion's defining clinical advantage is strength, and that strength comes directly from how it is made. Because the teeth and base are milled from one continuous disc, there is no bond line between the base and the teeth, which is where dentures most commonly fail.

Why the junction matters

ROE notes that an estimated 22% to 30% of denture repairs involve tooth debonding. In a bonded denture, the base and teeth are separate components joined together, and over time mechanical stress builds at that connection. This is most evident in implant-supported overdentures, where the abutment-to-denture connection is under high stress and the denture base itself tends to be thinner. As a monolithic denture, Ivotion eliminates the stress that builds between the base and teeth. The material is consistent throughout, so stress is distributed evenly, increasing the denture's load capacity before failure.

The DCL material

Ivotion is milled from a high-quality DCL polymer. DCL stands for "double cross-linked" and refers to the high chemical resistance provided by the density of polymeric cross-linking. The fillers used in the cross-linking have a distinctive gravel-like shape rather than the spherical fillers typically used in dental materials, and this uneven shape helps prevent the dislodgement and material erosion commonly seen in dentures.

Laboratory performance data

ROE publishes Ivoclar's ISO-based testing comparing Ivotion against bonded and printed configurations. The data consistently show the monolithic prosthesis outperforming the alternatives.

Resistance to tooth debonding (higher load is better):

Work of fracture (higher is better):

Load to failure under torsional loading (higher is better):

ROE highlights that torsional loading, or twisting in opposite directions, is considered one of the most dominant mechanical strains a denture experiences. In load-to-fracture testing, a traditional overdenture (carded teeth bonded to a denture base) fractured at 47% of the load required to break the monolithic Ivotion prosthesis. In plain terms, Ivotion is described as nearly twice as strong as conventional dentures, which is what makes it ROE's recommendation for implant support and heavy-bite patients.

Additional Resources

For more information concerning the digital dentures:

• Ivotion Digital Dentures product page
• Removable Solutions eBook

Contact Information

For help with a digital denture solution for your next case, contact ROE Dental Laboratory:

• Phone: (216) 663-2233
• Email: info@roedentallab.com