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Shofu Inc.; Tosoh Corporation Mitsui Chemicals, Inc. and Orbray Co., Ltd. are announcing the launch of a joint verification project to recycle zirconia waste from dental prosthetic production.* Practical application is targeted for fiscal 2028.
Zirconia is a principal material for dental prosthetics and is milled at dental laboratories to produce products such as crowns and bridges. Demand for zirconia dental prosthetics continues to grow because of zirconia’s aesthetic appeal and durability. However, the milling process is wasteful because it leaves much discarded zirconia from the disc-shaped blanks employed.
The four companies behind this project each have a distinct role in recycling that unused zirconia. Shofu will collect waste from the zirconia products it has sold. Tosoh will regenerate that waste into raw material using its proprietary Zirconia Refine Technology. Orbray will mold blocks from this regenerated raw material and commercialize them as products. And Mitsui Chemicals will provide operational support and other assistance.
All four companies will work in cooperation with the dental laboratories that are zirconia’s principal end users to realize the world’s first recycling scheme for zirconia dental waste. This will create a circular economy in the dental industry and contribute to environmental sustainability.
Dental prosthetics are artificial parts used to restore or reconstruct teeth lost or damaged by cavities, periodontal disease, or other conditions.
Tosoh Corporation
Who We Are
Tosoh Corporation is the parent of the Tosoh Group, which comprises over 100 companies worldwide and a multiethnic workforce of over 14,000 people. It generated net sales of ¥1,019.9 billion (US$6.4 billion at the average rate of ¥159 to the US dollar) in fiscal 2026, ended March 31, 2026.
What We Do
Tosoh is one of the largest chlor-alkali manufacturers in Asia. The Company supplies the plastic resins and an array of the basic chemicals that support modern life. Tosoh’s petrochemical operations supply ethylene, polyethylene, and functional polymers, while its advanced materials business serves the global semiconductor, display, and solar industries. Tosoh has also pioneered sophisticated bioscience systems that are used for the monitoring of life-threatening diseases. In addition, Tosoh demonstrates its commitment to a sustainable future in part by manufacturing a variety of eco-products.
Note: This story has not been edited by The Polymerupdate Editorial team and is auto-generated from a syndicated feed.
