First 3D-printed ceramic subperiosteal jaw implant placed in patient

Lithoz has announced the successfully placement of a 3D-printed ceramic subperiosteal jaw implant in a patient for the first time ever.

Led by Profactor GmbH, this innovation is said to mark significant advancement for medicine and is part of the EU-funded INKplant project made up of 19 interdisciplinary partners.

ceramic subperiosteal jaw implant lithoz
(Image: Lithoz)

A patient at Kepler University Hospital, who had lost multiple dental implants and bone grafts in the past due to his compromised health, was unable to receive further conventional surgical strategies as a result of significant scarring and thus received the new implant as a compassionate use case.

As one of the partners in the project, Lithoz has been researching the optimal fusion of various biomaterials with the advantages of 3D printing since 2021. The implant was developed with and built by Austrian ceramic 3D printing specialist Lithoz to address the issue of atrophic jaws, a common problem in older patients.

According to the company, after the loss of teeth the jawbone disappears as well, resulting in atrophic jaws and rendering the use of dentures impossible. With severe atrophy, conventional dental implants require additional lengthy operations to graft new bone to anchor the implants. Such operations are difficult for elderly patients who cannot undergo bone grafting due to health issues.

Made of biocompatible high-strength zirconia using Lithoz LCM technology, the implant did not require any bone augmentation and required only one procedure, reducing healing time by an estimated 75% and avoiding excess trauma for the patient. Thanks to this synergetic innovation in design and material, all the necessary surgical procedures were completed in a single operation.

The surgery, led by Dr Christoph Staudigl, was a successful world first use of a ceramic subperiosteal jaw implant in a compassionate use case on a patient. Despite some expected wound healing issues after surgery, the superior soft tissue compatibility of zirconia compared to titanium played its role spectacularly. The implant showed clinical stability after 60 days, representing a decisive breakthrough for the treatment of severely atrophic jaws according to Lithoz.

ceramic subperiosteal jaw implant lithoz
(Image: Lithoz)

The design of the customised implant was pioneered by the Centre for Medical Physics and Biomedical Engineering at the Medical University of Vienna in collaboration with Dr Staudigl.

During the design process, BTI Biotechnology Institute (Vitoria-Gasteiz, Spain) and BioMed Centre Innovation GmbH (Bayreuth, Germany) also contributed significantly with their expertise. The implant will be patented and adopted as a medical device by BioMed Centre spin-off Agensmed GmbH and will be manufactured using Lithoz 3D printers. A clinical trial is being prepared to systematically validate its efficacy.

The project INKplant has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 953134.

Related: Dentsply Sirona and Siemens Healthineers present the first dental-dedicated MRI (ddMRI) system