<div class="csl-bib-body">
<div class="csl-entry">Nistler, S., Hofstetter, C., Baudis, S., Schwentenwein, M., & Stampfl, J. (2023, August 31). <i>Hydroxyapatite and Tricalcium Phosphate Sinter-Joined with Zirconia to Selectively Enhance Large Bone Implants Manufactured by Digital Light Processing-based Vat Polymerization</i> [Poster Presentation]. yCAM Forum 2023, Leoben, Austria. http://hdl.handle.net/20.500.12708/189038</div>
</div>
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/189038
-
dc.description.abstract
Natural bone has the capacity to self-repair as long as the defect is small. However, once the defect exceeds a critical size, the body needs artificial support to restore the missing structure. Artificial bone replacement is designed to regenerate damaged material by mimicking natural bone tissue in structure and mechanics. The implant serves as a replacement for the missing endogenous bone and must withstand applied loads, including handling of the implant before and during surgery, as well as the stress needed to keep the implant in place. Structural similarities such as a specific degree of porosity facilitate bone ingrowth and vascularisation.
Since every patient, and therefore every bone defect, is unique, additive manufacturing (AM) has great potential for personalized and customized solutions in implantology. We use digital light processing (DLP) based vat polymerisation, which selectively cures photopolymers filled with ceramic powders layer by layer. The excellent geometric resolution of the process enables precise replication of the patient's complex anatomy.
Hydroxyapatite or tricalcium phosphate ceramics have impressive properties, such as osteoconductivity or osteoinductivity, and bioresorbability. However, their poor mechanical properties restrict their use to small bone replacement implants. Zirconia, on the other hand, has high compressive and flexural strength and is also biocompatible. Therefore, we fabricated pieces of hydroxyapatite and tricalcium phosphate joined with zirconia during the sintering process to selectively enhance specific areas. We investigated different designs, sintering temperatures, and holding times.
en
dc.description.sponsorship
Christian Doppler Forschungsgesells
-
dc.language.iso
en
-
dc.subject
Hydroxyapatite
en
dc.subject
Tricalcium Phosphate
en
dc.subject
Zirconia
en
dc.subject
Bioceramics
en
dc.subject
Sinter-Joining
en
dc.subject
Bone Replacement
en
dc.subject
Additive Manufacturing
en
dc.subject
Lithography-based Ceramic Manufacturing
en
dc.title
Hydroxyapatite and Tricalcium Phosphate Sinter-Joined with Zirconia to Selectively Enhance Large Bone Implants Manufactured by Digital Light Processing-based Vat Polymerization
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Lithoz GmbH
-
dc.relation.grantno
CDL Baudis
-
dc.type.category
Poster Presentation
-
tuw.project.title
Christian Doppler Labor für Fortschrittliche Polymere für Biomaterialien und den 3D Druck
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.id
M4
-
tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.name
Non-metallic Materials
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
80
-
tuw.linking
https://euroceram.org/2023-ycam-forum-in-leoben
-
tuw.publication.orgunit
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
tuw.author.orcid
0000-0002-5390-0761
-
tuw.author.orcid
0000-0002-2076-5575
-
tuw.author.orcid
0000-0002-3626-5647
-
tuw.event.name
yCAM Forum 2023
en
tuw.event.startdate
30-08-2023
-
tuw.event.enddate
01-09-2023
-
tuw.event.online
On Site
-
tuw.event.type
Event for scientific audience
-
tuw.event.place
Leoben
-
tuw.event.country
AT
-
tuw.event.institution
ECERS, EMC, Montanuniversität Leoben
-
tuw.event.presenter
Nistler, Sarah
-
wb.sciencebranch
Medizintechnik
-
wb.sciencebranch
Maschinenbau
-
wb.sciencebranch
Werkstofftechnik
-
wb.sciencebranch.oefos
2060
-
wb.sciencebranch.oefos
2030
-
wb.sciencebranch.oefos
2050
-
wb.sciencebranch.value
5
-
wb.sciencebranch.value
20
-
wb.sciencebranch.value
75
-
item.languageiso639-1
en
-
item.openairetype
conference poster not in proceedings
-
item.grantfulltext
none
-
item.fulltext
no Fulltext
-
item.cerifentitytype
Publications
-
item.openairecristype
http://purl.org/coar/resource_type/c_18co
-
crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
-
crisitem.author.dept
E163 - Institut für Angewandte Synthesechemie
-
crisitem.author.dept
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
-
crisitem.author.orcid
0009-0006-9591-5749
-
crisitem.author.orcid
0000-0002-5390-0761
-
crisitem.author.orcid
0000-0002-3626-5647
-
crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
-
crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
