L.A. Dobrzanski, A.D. Dobrzanska-Danikiewicz, P. Malara, L.B. Dobrzanski, A. Achtelik-Franczak, T.G. Gawel
Silesian University of Technology
Patent P. 414423
The authors of the invention have created a distinguishing implant and prosthesis whose innovation concerns the combination of a solid implant with a scaffold into one hybridised constructional form. Such constructional form significantly improves the functional properties of implants and prostheses used for anatomical elements of a dental and craniofacial system. Implant scaffolds and a prosthesis are characterised in that they are constructed of a solid core surrounded with a hybrid layer of micropores creating a zone with a porous structure consisting of multiplied unit cells. Micropores have a differentiated, individually designed shape and geometric dimensions within the range of 0-2000 µm. A characteristic feature of a porous structure is also the fact that its surface can be covered with a thin layer made of 0-500 µm thick bioactive material. A zone with a porous structure can be placed as an internal and/or external layer on a solid core and can be covered with another layer of polymeric or ceramic material. A zone with a porous structure can be also placed as an internal and/or external layer on a surface of a solid core and micropores can be filled with living cells of osteoblasts. An advantage of the proposed solution is that an implant-scaffold is created owing to which appropriate osteosynthesis with bones is ensured in the area of a dental or craniofacial system, and in the case of tooth implant scaffolds, osteosynthesis with upper and lower jaw bones. If an implant or prosthesis is covered with ceramic or polymeric materials, an advantage is that better functional properties of such prostheses are ensured, including mainly resistance to detachment of such coverings. An implant scaffold and a stomatognathic and craniofacial prosthesis are produced with computer-aided additive methods based on a computer tomogram serving to create a model showing the size and loss of a patient’s bone loss. A method of Computer Aided Materials Design (CAMD) and of manufacturing, by Selective Laser Sintering (SLS) from Ti and Ti6Al4V powder, of innovative implant scaffolds accommodated to the shape and size of a given patient’s bone loss was developed under the research works. The originality of the newly created solution, considering the review of literature, was confirmed under patent claim no. P. 414423.