Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches

Yamaguchi, Satoshi; Katsumoto, Yu; Hayashi, Kimiko; Aoki, Maika; Kunikata, Miwa; Nakase, Yutaro; Lee, Chunwoo; Imazato, Satoshi

doi:https://doi.org/10.1016/j.jmbbm.2020.104083

Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches

Yamaguchi, Satoshi; Katsumoto, Yu; Hayashi, Kimiko et al.

Journal of the Mechanical Behavior of Biomedical Materials, 2020, 112, 104083

Number of Access:172（2025-06-06 18:46 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93085

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Title	Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches
Creator	NRID 1000030397773 1000030397773 ORCID 0000-0002-4661-8821 0000-0002-4661-8821 researchmap permalink YamaguchiS_30397773 YamaguchiS_30397773 Scopus Author ID 7403873463 7403873463 CreatorName Yamaguchi, Satoshi
	CreatorName Katsumoto, Yu
	CreatorName Hayashi, Kimiko
	CreatorName Aoki, Maika
	CreatorName Kunikata, Miwa
	CreatorName Nakase, Yutaro
	CreatorName Lee, Chunwoo
	NRID 1000080243244 1000080243244 ORCID 0000-0003-3655-4809 0000-0003-3655-4809 researchmap permalink read0014210 read0014210 Scopus Author ID 55994423600 55994423600 CreatorName Imazato, Satoshi
Subject	CAD/CAM resin composites
	Compressive tests
	Crack propagation
	Finite element analysis
	Fracture initiation
Description	Yamaguchi S., Katsumoto Y., Hayashi K., et al. Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches. Journal of the Mechanical Behavior of Biomedical Materials 112, 104083 (2020); https://doi.org/10.1016/j.jmbbm.2020.104083.
Abstract	Purpose: Fractographic analysis has been used to investigate the fracture behavior of Computer-aided design/computer-aided manufacturing (CAD/CAM) composite crowns by subjecting them to compression tests. However, it is difficult to investigate details of the fracture, including its initiation and propagation, using in vitro tests. The aim of this study was to determine the fracture origins and the order of crack initiation of CAD/CAM composite crowns using in silico nonlinear dynamic finite element analysis (FEA). Material and methods: The following materials were used: Cerasmart (CS), Katana Avencia Block (KA), and Shofu Block HC (HC) as CAD/CAM crowns, Panavia SA Cement Plus (SA) as a luting material, and Clearfil DC Core Plus (DC) as an abutment. The elastic moduli and fracture strain of each material were obtained from the stress–strain curve of in vitro three-point bending tests. The fracture origins and order of crack initiation of the materials were determined by in silico nonlinear dynamic compression analysis. Load-displacement curves were statistically compared with the results of the in vitro compression tests (Pearson's correlation test, α = 0.05). Results: The nonlinear dynamic FEA demonstrated that crack initiation was primarily observed near the lingual side of the CAD/CAM crowns and immediately propagated to the central fossa. The models were fractured following the in vitro fracture strains, showing the same order for the products tested (CS/KA/HC, SA, and DC). Load-displacement curves with the use of CS, KA, and HC were significantly correlated to the corresponding in vitro compression tests results (CS: r = 0.985, p < 0.05, KA: r = 0.987, p < 0.05, and HC: r = 0.997, p < 0.05). Conclusions: The in silico model established in this study clarified the crack initiation of the CAD/CAM composite crowns and the order of crack initiation among the investigated products, suggesting that the present approach is useful for analyzing the fracture behavior of CAD/CAM composite crowns in detail.
Publisher	Elsevier Ltd
Source Title	Journal of the Mechanical Behavior of Biomedical Materials
Volume (Issue)	112
Page	104083
Date of Issued	2020-12-01
Language	English
Handle URL	https://hdl.handle.net/11094/93085
PISSN	17516161
Relation.isVersionOf	DOI (Publisher Version) https://doi.org/10.1016/j.jmbbm.2020.104083
Access Rights	open access
CopyRight	©2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
oaire:version	Accepted Manuscript
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Journal of the Mechanical Behavior of Biomedical Materials. 2020, 112, p. 104083
DC.title	Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches
DC.creator	Yamaguchi, Satoshi
	Katsumoto, Yu
	Hayashi, Kimiko
	Aoki, Maika
	Kunikata, Miwa
	Nakase, Yutaro
	Lee, Chunwoo
	Imazato, Satoshi
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-12-01
DC.identifier	https://doi.org/10.1016/j.jmbbm.2020.104083
DC.subject	CAD/CAM resin composites
	Compressive tests
	Crack propagation
	Finite element analysis
	Fracture initiation
DC.description	Yamaguchi S., Katsumoto Y., Hayashi K., et al. Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches. Journal of the Mechanical Behavior of Biomedical Materials 112, 104083 (2020); https://doi.org/10.1016/j.jmbbm.2020.104083.
DCTERMS.abstract	Purpose: Fractographic analysis has been used to investigate the fracture behavior of Computer-aided design/computer-aided manufacturing (CAD/CAM) composite crowns by subjecting them to compression tests. However, it is difficult to investigate details of the fracture, including its initiation and propagation, using in vitro tests. The aim of this study was to determine the fracture origins and the order of crack initiation of CAD/CAM composite crowns using in silico nonlinear dynamic finite element analysis (FEA). Material and methods: The following materials were used: Cerasmart (CS), Katana Avencia Block (KA), and Shofu Block HC (HC) as CAD/CAM crowns, Panavia SA Cement Plus (SA) as a luting material, and Clearfil DC Core Plus (DC) as an abutment. The elastic moduli and fracture strain of each material were obtained from the stress–strain curve of in vitro three-point bending tests. The fracture origins and order of crack initiation of the materials were determined by in silico nonlinear dynamic compression analysis. Load-displacement curves were statistically compared with the results of the in vitro compression tests (Pearson's correlation test, α = 0.05). Results: The nonlinear dynamic FEA demonstrated that crack initiation was primarily observed near the lingual side of the CAD/CAM crowns and immediately propagated to the central fossa. The models were fractured following the in vitro fracture strains, showing the same order for the products tested (CS/KA/HC, SA, and DC). Load-displacement curves with the use of CS, KA, and HC were significantly correlated to the corresponding in vitro compression tests results (CS: r = 0.985, p < 0.05, KA: r = 0.987, p < 0.05, and HC: r = 0.997, p < 0.05). Conclusions: The in silico model established in this study clarified the crack initiation of the CAD/CAM composite crowns and the order of crack initiation among the investigated products, suggesting that the present approach is useful for analyzing the fracture behavior of CAD/CAM composite crowns in detail.
DC.rights	©2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
DC.format	93085
citation_title	Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches
citation_author	Yamaguchi, Satoshi
	Katsumoto, Yu
	Hayashi, Kimiko
	Aoki, Maika
	Kunikata, Miwa
	Nakase, Yutaro
	Lee, Chunwoo
	Imazato, Satoshi
citation_publisher	Elsevier Ltd
citation_language	English
citation_date	2020-12-01
citation_journal_title	Journal of the Mechanical Behavior of Biomedical Materials
citation_volume	112
citation_firstpage	104083
citation_doi	https://doi.org/10.1016/j.jmbbm.2020.104083
citation_public_url	https://hdl.handle.net/11094/93085

Fracture origin and crack propagation of CAD/CAM composite crowns by combining of in vitro and in silico approaches

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