Process for producing a zirconia dental article

EP4709344A1Pending Publication Date: 2026-03-18SOLVENTUM INTELLECTUAL PROPERTIES CO
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-11
Publication Date
2026-03-18

AI Technical Summary

Technical Problem

Current methods for producing dental zirconia articles often require additional modification steps like milling and result in undesirable aesthetic changes and increased wear on opposing teeth, with glazing materials being less durable and labor-intensive to apply.

Method used

A process involving the use of radiation-curable zirconia sols for additive manufacturing, allowing for the production of customized dental zirconia articles with a shiny surface, where the same zirconia material is used for glazing and coloring, applied in a gel state to achieve a durable, glossy finish.

Benefits of technology

This process enables the production of highly aesthetic, durable dental zirconia articles with a glossy surface that reduces wear on opposing teeth and eliminates the need for extensive modification, providing a more efficient and effective manufacturing approach.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IB2024053571_14112024_PF_FP_ABST
    Figure IB2024053571_14112024_PF_FP_ABST
Patent Text Reader

Abstract

The invention relates to a process of producing a dental zirconia article, the process comprising the steps of processing a radiation-curable zirconia sol A as construction material in an additive-manufacturing process comprising a radiation-curing step to obtain a zirconia gel article, the zirconia gel article having the shape of a dental article with an outer and an inner surface, applying a radiation-curable zirconia sol Bx on at least a portion of the outer surface of the zirconia gel article,radiation-curing the radiation-curable zirconia sol Bx of step (b), transforming the zirconia gel article into a zirconia aerogel article, the radiation-curable zirconia sol A being same or different from the radiation-curable zirconia sol Bx with respect to chemical composition and / or physical properties. The invention also relates to a dental ceramic zirconia article obtainable by the process described in any of the proceeding claims.
Need to check novelty before this filing date? Find Prior Art