NADIMPLANT – as a response to the increasing demand made by the dental industry.

Nowadays, stress, irregular and unhealthy diet increases the risk of losing teeth by patients, but also motivates to constantly search for even better alternatives for implant treatment. Therefore, together with the Faculty of Materials Science and Engineering of Warsaw University of Technology and the Wychowański Stomatologia Dental Clinic, we have started a new generation project of a dental implants.

The implant will be characterized by a zonal construction, which will be divided into a solid part (upper) and a porous part (lower). The surface of the solid part will remain smooth, which will result in a reduced ability for bacteria to settle and, if bacteria appear, will allow for easy cleaning of the surface. In this part of the implant there will also be space for the fastening of the locking screw and abutment. The second part of the implant, with its open porosity, will allow a better integration of the implant with the surrounding bone tissue by increasing the implant contact surface with the bone. This will reduce the stress at the bone/metal interface and thus ensure better osteointegration and stability of the implant. The solution will stand out from the competition and products on the market in that the implant will be equipped with a system of interconnected channels allowing the supply of various substances such as drugs or growth factors from outside. In addition, this solution will allow the measurement of osteointegration or osteolysis. The implanted canal system will consist of a main canal, which will run along the longest axis of the implant from the connector socket to the surface and lateral canals.

Another innovation of the product will be the possibility to measure the amount of surrounding bone tissue with the use of an implant by measuring the amount of fluids delivered to its surroundings. Thanks to the appropriately selected open porosity, the bone tissue will grow into the pores, thus ensuring better implant stability and stress distribution in the bone.

The project will develop a method for the production of structures that takes into account the dimensional differences of elements produced by 3D printing technologies, compared to CAD model dimensions, resulting from the contraction or expansion of powder materials as a result of using a high energy source (laser/electron beam) for consolidation. An innovative method of producing cellular structures, which in modern implants represent a significant part of their volume, will use computed tomography, electron microscopy, structural studies for post-processing validation and chemical surface treatment methods to remove unalloyed powder particles. The project will involve the design, testing and 3D manufacturing of precision dental implants with an increased contact surface with bone tissue, which will provide better stabilization of the implants. Research work will start by developing the concept, modelling and design of different implant variants using cellular structures. The modelling and design will include numerical analyses that will allow to design a geometry with adequate strength and minimized stress shielding effect on the surrounding bone implant. Minimizing the stress transferred by the implant to the surrounding bone will avoid the phenomenon of bone resorption around the implant. Manufacturing processes and prototyping of elements will be carried out.  In vitro and in vivo tests will be performed on the produced prototypes. The product we are developing will enable the introduction of a new solution, which will result in the development of the implantology market and will increase the overall success rate of implantology treatment. Another advantage of the proposed solution is the possibility to use implants in people suffering from diseases that affect difficulties in wound healing or have problems with the skeletal system, as well as in people after radiotherapy or in addicted smokers. Thanks to the possibility of administering anti-inflammatory and analgesic drugs directly to the area of the wound healing after implantation, patients so far excluded from implantological procedures will have a chance to rebuild their dentition with this method. Additionally, the reduction of negative postoperative effects will increase the potential group of people who decide to have an implant inserted. The possibility of local introduction of drugs will also contribute to prolonging the durability of treatment effects thanks to the possibility of intervention in cases where infectious bone inflammation around the implant occurs while the patient is using the implant reconstruction. Enabling the application of antibiotics and growth factors directly in the area of the dental implant inserted into the infected alveolus will allow faster and safer healing of the implant inserted into the damaged, dynamically changing alveolar bone after extraction of the infected causal tooth, will definitely influence the spread of immediate implantation services.