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20.10.2016 | Original Article

Radio-opaque polyethylene for personalized craniomaxillofacial implants

verfasst von: Marcin Kozakiewicz, Leszek Olbrzymek, Ludomir Stefanczyk, Marek Olszycki, Piotr Komorowski, Bogdan Walkowiak, Bartłomiej Konieczny, Michał Krasowski, Jerzy Sokołowski

Erschienen in: Clinical Oral Investigations | Ausgabe 5/2017

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Abstract

Objective

This study aimed to present a new possibility to create radio-opaque implant material for craniomaxillofacial reconstruction.

Materials and methods

The test disks made of the own compound of polyethylenes with addiction of 2, 4, and 6 % of weight TiO₂ was investigated for cytotoxicity [each group 15 disks respectively]. Next, computed tomography of the disks was performed in environment of muscle and fat. Hardness, tensile modulus and strength, and compressive modulus and strength were tested too.

Results

Deterioration of mechanical properties of the composites containing titanium dioxide was observed [hardness, tensile modulus and strength, compressive modulus and strength, respectively: 56.7 ± 1.6 shore D, 354 ± 52, 22.5 ± 1.3, 21.8 ± 1.1, and 2995 ± 327 MPa as addiction of 2 % TiO₂; 52.0 ± 0.9 shore D, 347 ± 66, 18.0 ± 0.7, 14.2 ± 0.9, and 1396 ± 477 MPa as 4 % TiO₂; 51.3 ± 1.3 shore D, 316 ± 9, 17.4 ± 0.2, 13.6 ± 0.6, and 1100 ± 144 MPa as 6 % TiO₂ added]. The test disks revealed no cytotoxicity effect on human osteoblasts. The new material presents mild radio-opacity which was enough to observe the implant in relation to fat and muscle, but with no visible effect of beam hardening.

Conclusion

In view of the performed tests, the polyethylene enriched by titanium dioxide seems to be a proper material to consider manufacturing of craniomaxillofacial implants.

Clinical relevance

Maxilloafacial surgery is still looking for new implantologic materials. The proposed one is a new way to manufacture an implant visible in computed tomography which does not interfere with its shape in radiological examination and makes it possible to observe the surrounding soft tissues.

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Titel: Radio-opaque polyethylene for personalized craniomaxillofacial implants
verfasst von: Marcin Kozakiewicz
Leszek Olbrzymek
Ludomir Stefanczyk
Marek Olszycki
Piotr Komorowski
Bogdan Walkowiak
Bartłomiej Konieczny
Michał Krasowski
Jerzy Sokołowski
Publikationsdatum: 20.10.2016
Verlag: Springer Berlin Heidelberg
Erschienen in: Clinical Oral Investigations / Ausgabe 5/2017
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-016-1978-x

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Radio-opaque polyethylene for personalized craniomaxillofacial implants