INDIVIDUAL IMPLANTS FROM BONE REPLACING MATERIALS FOR TREATMENT OF ONCOLOGICAL PATHOLOGY OF BONE TISSUE
The optimal combination of the inner barrier layer of the matrix (silicone, aseptic film) and bone replacement material («Rekost», bone cement) was determined with the creation of 40 precision personalized implants, as well as analysis of traces of the matrix material and the material of the inner barrier layer on the surface of 8 implants from bone substitute material. As a result of the study, it was found that the use of an aseptic film as an inner barrier layer in the technology developed for contactless matrix material to create implants from bone cement made it possible in all cases to obtain a highly accurate correspondence to computer 3D models. The use of matrices with an internal barrier layer from an aseptic film in the production of individual bone substitution implants allows in all cases its absence, as well as the matrix material on the surface of the implants created. Removal of the surface layer of implants created in matrices using silicone, as well as an increase in their computer 3D models by 0.5 mm, in comparison with those planned in our opinion, will increase the precision and will ensure that the material of the inner barrier layer is not retained on the implants.