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Metallic skeletons as reinforcement
of new composite materials applied
in orthopaedics and dentistry

Purpose: The article concerns the development of completely new groups of composite
materials that can be used to produce functional replacements for damaged bones or teeth.
Design/methodology/approach: A selective laser sintering was used to produce the
reinforcement of those materials from titanium and its Ti6Al4V alloy in the form of skeletons
with pores with adjustable geometric features. The matrix of those materials is either air or
crystallised from the liquid AlSi12 or AlSi7Mg0.3 alloys condition after prior vacuum infiltration
or human osteoblast cells from the hFOB 1.19 (Human ATCC - CRL - 11372) culture line.
Findings: The porous material may be used for the non-biodegradable scaffold. After
implantation into the body in the form of an implant-scaffold one, it allows the natural
cells of the patient to grow into the pores of the implant, and it fuses with the bone or the
appropriate tissue over time. The essential part of the implant-scaffold is the porous part
inseparably connected with the core of solid materials. Into pores can grow living cells.
Research limitations/implications: Biological-engineering composite materials in
which natural cells were cultured in the pores in the laboratory next are combined as an
artificial material with the natural cells of the patient in his/her body.
Practical implications: The hybrid technologies of the all group of those materials were
obtained and optimised. Numerous structure research was carried out using the most
modern research methods of contemporary materials engineering, and mechanical tests and
biological research involving the cultivation of natural cells were realised.
Originality/value: The results of the research indicate the accuracy of the idea of
implementing a new group of biological-engineering materials and the wide possibilities of
their application in regenerative medicine.

