de Wild, Michael
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de Wild, Michael
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- PublikationSPIRITS – Ein neues Roboter-Unterstützungssystem für die interventionelle Radiologie, das frühe Behandlung von Tumoren ermöglicht(01/2018) de Wild, Michael [in: RegioInform]01 - Zeitschriftenartikel, Journalartikel oder Magazin
- PublikationInvestigation of structural resorption behavior of biphasic bioceramics with help of gravimetry, μCT, SEM, and XRD(07.05.2015) de Wild, Michael; Molenberg, Aart; Amacher, Fabienne; Chris, Bradbury [in: Journal of Biomedical Materials Research. Part B: Applied Biomaterials]Resorbable bone substitute materials are widely used for bone augmentation after tumor resection, parallel to implant placement, or in critical size bone defects. In this study, the structural dissolution of a biphasic calcium phosphate bone substitute material with a hydroxyapatite (HA)/tricalcium phosphate (ß-TCP) ratio of 60/40 was investigated by repeatedly placing porous blocks in EDTA solution at 37°C. At several time points, the blocks were investigated by SEM, µCT, and gravimetry. It was found that always complete 2–3 µm sized grains were removed from the structure and that the ß-TCP is dissolved more rapidly. This selective dissolution of the ß-TCP grains was confirmed by XRD measurements. The blocks were eroded from the outside toward the center. The structure remained mechanically stable because the central part showed a delayed degradation and because the slower dissolving HA grains preserved the integrity of the structure.01 - Zeitschriftenartikel, Journalartikel oder Magazin