Influence of Internal Microarchitecture on the Shape of Individual
Implants Made from Vinylidene Fluoride Copolymer by 3D Printing
with High-Temperature Crystallization

A. O. Vorobyev; Воробьев А. О.; D. E. Kulbakin; Кульбакин Д. Е.; S. G. Chistyakov; Чистяков С. Г.; A. D. Mitrichenko; Митриченко А. Д.; G. E. Dubinenko; Дубиненко Г. Е.; I. O. Akimchenko; Акимченко И. О.; A. S. Gogolev; Гоголев А. С.; E. L. Choynzonov; Чойнзонов Е. Л.; V. M. Bouznik; Бузник В. М.; E. N. Bolbasov; Больбасов Е. Н.

doi:10.31857/S0207401X23110109

Influence of Internal Microarchitecture on the Shape of Individual Implants Made from Vinylidene Fluoride Copolymer by 3D Printing with High-Temperature Crystallization

Authors: Vorobyev A.O.¹, Kulbakin D.E.², Chistyakov S.G.¹, Mitrichenko A.D.², Dubinenko G.E.¹, Akimchenko I.O.¹, Gogolev A.S.¹, Choynzonov E.L.², Bouznik V.M.¹, Bolbasov E.N.¹^,3
Affiliations:
1. National Research Tomsk Polytechnic University
2. Tomsk National Research Medical Center, Russian Academy of Sciences
3. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences
Issue: Vol 42, No 11 (2023)
Pages: 9-15
Section: ХИМИЧЕСКЯ ФИЗИКА ПОЛИМЕРНЫХ МАТЕРИАЛОВ
URL: https://journals.rcsi.science/0207-401X/article/view/233190
DOI: https://doi.org/10.31857/S0207401X23110109
EDN: https://elibrary.ru/VDJXMX
ID: 233190

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Abstract
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Abstract

The healing potential of individual polymer implants for the reconstruction of extensive craniofacial
defects after cancer resection is largely determined by the internal architecture of the implant. The architecture
of an implant during polymer crystallization could affect the structure and shape of the implant at the
micro and macro levels. In this study, the relationship between the internal architecture (triply periodic minimum
surface structure (gyroid), cube, grid, and honeycomb) and shape changes of individual implants by
3D printing with a vinylidene fluoride-tetrafluoroethylene copolymer after crystallization is examined at a
filling density of 70%. Using the method of differential scanning calorimetry, it is established that crystallization
leads to the rearrangement of the crystalline structure of the implant into electrically active (ferroelectric)
crystalline phases. Moreover, the type of internal architecture affects the change in the shape of the
implant after crystallization. The results of the computed tomography show that structures with a triply periodic
minimum surface (gyroid) provide the minimal deformation of the implant during crystallization, which
makes such structures optimal for manufacturing implants for replacing bone defects in the zygomatic-orbital
complex.

Keywords

3D printing, individual implants, copolymer of vinylidene fluoride, tetrafluoroethylene

References

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