Abstract
Results of the application of selective laser melting technology for making implants of different porosity have been presented. The basis for the construction was the Wigner–Seitz cells of 1–3 mm in size with a wall diameter of 0.2–0.3 mm. Basic metal powder Ti6Al4 V with the average size of particles equal to 30 μm is characterized by sufficiently high degree of purity and the lack of detrimental impurities. The selective laser melting technique was chosen in this study which provided necessary geometrics and microstructure parameters of cellular construction. Laser melting was performed at the Realizer SLM 50 installation, and argon was used for the protective atmosphere in the working chamber. Experimental study of elastic and strength properties of cellular materials on a universal floor electromechanical testing machine (Instron 5885H) has been carried out. Physical–mechanical properties of the obtained samples correspond to the bone tissue properties. Developmental models of jaw implants for the study of the bone structures regeneration after the introduction of implants in laboratory animals have been produced. Observation of the animals did not reveal the rejection of implants and the integral indicators (temperature reaction, appetite, behavior) were in the normal range. The cellular structure promotes to reduce the time of bone tissue regeneration.
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Acknowledgements
The authors officially thank V. P. Vasilyuk, candidate of medical science, associate professor of the department of dental and oral surgery of Acad. E. A. Vagner PSMU, for the experiments on implantation of cellular structures into laboratory animals. Research has been carried out under financial support of the Ministry of Education and Science of RF according to the state-guaranteed order 11.9716.2017/8.9.
Ethical approval All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
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Kilina, P., Sirotenko, L., Morozov, E., Ablyaz, T., Muratov, K. (2019). Development of Cellular Construction for the Jaw Bone Defects Replacement by Selective Laser Melting. In: Bains, P., Sidhu, S., Bahraminasab, M., Prakash, C. (eds) Biomaterials in Orthopaedics and Bone Regeneration . Materials Horizons: From Nature to Nanomaterials. Springer, Singapore. https://doi.org/10.1007/978-981-13-9977-0_4
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