<div class="csl-bib-body">
<div class="csl-entry">Nistler, S., Hofstetter, C., Baudis, S., Schwentenwein, M., & Stampfl, J. (2023, September 4). <i>Hydroxyapatite and Tricalcium Phosphate in Combination with Zirconia Manufactured by Digital Light Processing-based Vat Polymerization to Treat Large Bone Defects</i> [Conference Presentation]. FEMS Euromat 23, Frankfurt am Main, Germany. http://hdl.handle.net/20.500.12708/189039</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/189039
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dc.description.abstract
Natural bone has the capacity for self-repair when the defect is small. However, the body needs artificial support to restore the missing structure once the defect exceeds a critical size. Artificial bone replacement is designed to regenerate the damaged material by mimicking natural bone tissue as closely as possible in structure and mechanics. The implant acts as a replacement for the missing endogenous bone and must be able to withstand the applied loads, which include the handling of the implant before and during surgery as well as the stresses from the patient's daily activities. Bone ingrowth, vascularisation, nutrient transport and waste removal are facilitated by structural similarities such as a degree of porosity.
Since every patient, and therefore every bone defect, is unique, additive manufacturing (AM) has great potential for personalised and customised medicine. We use digital light processing (DLP) based vat polymerisation, which selectively cures photopolymers filled with ceramic powders layer by layer. The high resolution of the process enables a precise replication of the patient's complex anatomy.
Hydroxyapatite or tricalcium phosphate ceramics have impressive properties such as osteoconductivity or osteoinductivity and bioresorbability. However, they have poor mechanical properties and can only be used for small bone replacement implants. Zirconia, on the other hand, has high compressive and flexural strength and is also biocompatible. We therefore fabricated pieces of hydroxyapatite and tricalcium phosphate in combination with zirconia to evaluate the properties of the combined product. We investigated the suitability for DLP-based vat polymerisation and analysed the sintered parts regarding mechanical properties and microstructure.
en
dc.description.sponsorship
Christian Doppler Forschungsgesells
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dc.language.iso
en
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dc.subject
Hydroxyapatite
en
dc.subject
Tricalcium Phosphate
en
dc.subject
Zirconia
en
dc.subject
Bioceramics
en
dc.subject
Additive Manufacturing
en
dc.subject
Lithography-based Ceramic Manufacturing
en
dc.subject
Bone Replacement
en
dc.title
Hydroxyapatite and Tricalcium Phosphate in Combination with Zirconia Manufactured by Digital Light Processing-based Vat Polymerization to Treat Large Bone Defects
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Lithoz GmbH
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dc.relation.grantno
CDL Baudis
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dc.type.category
Conference Presentation
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tuw.project.title
Christian Doppler Labor für Fortschrittliche Polymere für Biomaterialien und den 3D Druck
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
M4
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Non-metallic Materials
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tuw.researchTopic.value
20
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tuw.researchTopic.value
80
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tuw.linking
https://euromat2023.com/
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tuw.publication.orgunit
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
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tuw.author.orcid
0000-0002-5390-0761
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tuw.author.orcid
0000-0002-2076-5575
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tuw.author.orcid
0000-0002-3626-5647
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tuw.event.name
FEMS Euromat 23
en
tuw.event.startdate
03-09-2023
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tuw.event.enddate
07-09-2023
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.place
Frankfurt am Main
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tuw.event.country
DE
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tuw.event.institution
FEMS; DGM
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tuw.event.presenter
Nistler, Sarah
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wb.sciencebranch
Medizintechnik
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wb.sciencebranch
Maschinenbau
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wb.sciencebranch
Werkstofftechnik
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wb.sciencebranch.oefos
2060
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wb.sciencebranch.oefos
2030
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wb.sciencebranch.oefos
2050
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wb.sciencebranch.value
5
-
wb.sciencebranch.value
20
-
wb.sciencebranch.value
75
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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crisitem.project.funder
Christian Doppler Forschungsgesells
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crisitem.project.grantno
CDL Baudis
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crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
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crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
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crisitem.author.dept
E163 - Institut für Angewandte Synthesechemie
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crisitem.author.dept
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
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crisitem.author.orcid
0000-0002-5390-0761
-
crisitem.author.orcid
0000-0002-3626-5647
-
crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
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crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe