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2023 | OriginalPaper | Buchkapitel

Approach for Rapid Fabrication of Individual Bone Replacement Structures by Designing Additively Prefabricated CPC Models

verfasst von : P. Sembdner, H. Pohlmann, A. Wendler, J. B. Matschke, L. Kroschwald, S. Holtzhausen, A. Hutsky, D. Ellmann, G. Lauer, K. Paetzold

Erschienen in: Innovative Product Development by Additive Manufacturing 2022

Verlag: Springer International Publishing

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Abstract

Customized bone replacement structures offer the potential to build up missing bone areas. However, additive manufacturing of calcium phosphate cement (CPC) structures is limited due to the material behavior. The aim is to separate the functionalization and shaping. Thus, prefabricated CPC-prefabs, which show different porosity as functionalization, are to be manufactured additively. The individual shaping will be carried out by milling (CAD/CAM). Several CPC-prefabs are developed, which differ in the mapping of the transition geometry from porous to dense phase as well as in the overall size. Therefore, categorized datasets of mandibular scans are analyzed and the cross-sectional contour of the bone is determined. Mathematical regression is used to determine a parametrically described average contour, which is used to design the prefab models. First single phase prefab demonstrators have been additively manufactured and subjected to initial milling tests. The feasibility in principle of the intended process has thus been demonstrated.

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Literatur
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Zurück zum Zitat Hofmann, D., Sembdner, P., Holtzhausen, S., Stelzer, R.: Direct design of an individual bone implant on patient-specific CT data in CAx systems. In: CARS 2018-Computer Assisted Radiology and Surgery Proceedings of the 32nd International Congress and Exhibition, Berlin, Germany, 20–23 June 2018 (2018). Int. J. Comput. Assist. Radiol. Surg. 13(Suppl 1), 238–239. https://doi.org/10.1007/s11548-018-1766-y Hofmann, D., Sembdner, P., Holtzhausen, S., Stelzer, R.: Direct design of an individual bone implant on patient-specific CT data in CAx systems. In: CARS 2018-Computer Assisted Radiology and Surgery Proceedings of the 32nd International Congress and Exhibition, Berlin, Germany, 20–23 June 2018 (2018). Int. J. Comput. Assist. Radiol. Surg. 13(Suppl 1), 238–239. https://​doi.​org/​10.​1007/​s11548-018-1766-y
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Zurück zum Zitat Starch-Jensen, T., Deluiz, D., Vitenson, J., Bruun, N.H., Tinoco, E.M.B.: Maxillary sinus floor augmentation with autogenous bone graft compared with a composite grafting material or bone substitute alone: a systematic review and meta-analysis assessing volumetric stability of the grafting material. J. Oral Maxillofac. Res. 12(1), e1 (2021). https://doi.org/10.5037/jomr.2021.12101CrossRef Starch-Jensen, T., Deluiz, D., Vitenson, J., Bruun, N.H., Tinoco, E.M.B.: Maxillary sinus floor augmentation with autogenous bone graft compared with a composite grafting material or bone substitute alone: a systematic review and meta-analysis assessing volumetric stability of the grafting material. J. Oral Maxillofac. Res. 12(1), e1 (2021). https://​doi.​org/​10.​5037/​jomr.​2021.​12101CrossRef
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Metadaten
Titel
Approach for Rapid Fabrication of Individual Bone Replacement Structures by Designing Additively Prefabricated CPC Models
verfasst von
P. Sembdner
H. Pohlmann
A. Wendler
J. B. Matschke
L. Kroschwald
S. Holtzhausen
A. Hutsky
D. Ellmann
G. Lauer
K. Paetzold
Copyright-Jahr
2023
DOI
https://doi.org/10.1007/978-3-031-27261-5_5

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