In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration

Nakase, Yutaro; Yamaguchi, Satoshi; Jalkh, Ernesto B.Benalcázar; Atria, Pablo J.; Witek, Lukasz; Bonfante, Estevam A.; Li, Hefei; Sakai, Takahiko; Okawa, Rena; Nakano, Kazuhiko; Imazato, Satoshi

doi:https://doi.org/10.1016/j.dental.2023.04.006

In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration

Nakase, Yutaro; Yamaguchi, Satoshi; Jalkh, Ernesto B.Benalcázar et al.

Dental Materials, 2023, 39(7), 640-647

Number of Access:764（2025-07-20 12:00 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/92521

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Title	In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration
Creator	CreatorName Nakase, Yutaro
	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 Jalkh, Ernesto B.Benalcázar
	CreatorName Atria, Pablo J.
	CreatorName Witek, Lukasz
	CreatorName Bonfante, Estevam A.
	CreatorName Li, Hefei
	CreatorName Sakai, Takahiko
	NRID 1000080437384 1000080437384 researchmap permalink read0091517 read0091517 Scopus Author ID 9744705500 9744705500 ORCID 0000-0002-8634-209X 0000-0002-8634-209X CreatorName Okawa, Rena
	NRID 1000000379083 1000000379083 researchmap permalink read0202427 read0202427 Scopus Author ID 7402011667 7402011667 CreatorName Nakano, Kazuhiko
	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
	Fatigue
	Glass ionomer cements
	Primary teeth
	Resin composites
Description	Nakase Y., Yamaguchi S., Jalkh E.B.B., et al. In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration. Dental Materials 39, 640 (2023); https://doi.org/10.1016/j.dental.2023.04.006.
Abstract	Objective: To evaluate the reliability, maximum principal stress, shear stress, and crack initiation of a computer-aided design/computer-aided manufacturing (CAD/CAM) resin composite (RC) incorporating surface pre-reacted glass (S-PRG) filler for primary molar teeth. Methods: Mandibular primary molar crowns fabricated by experimental (EB) or commercially available CAD/CAM RCs (HC) were prepared and cemented to a resinous abutment tooth using an adhesive resin cement (Cem) or a conventional glass-ionomer cement (CX). These specimens were subjected to a single compressive test (n = 5/each) and the step-stress accelerated life testing (SSALT) (n = 12/each). Data was evaluated using Weibull analyses and reliability was calculated. Afterwards, the maximum principal stress and crack initiation point of each crown was analyzed by finite element analysis. To evaluate bonding of EB and HC to dentin, microtensile bond strength (μTBS) testing was conducted using primary molar teeth (n = 10/each). Results: There was no significant difference between the fracture loads of EB and HC for either cement (p > 0.05). The fracture loads of EB-CX and HC-CX were significantly lower than EB-Cem and HC-Cem (p < 0.05). The reliability at 600 N for EB-Cem was greater than that for EB-CX, HC-Cem, and HC-CX. The maximum principal stress concentrated on EB was lower than that on HC. The shear stress concentrated in the cement layer for EB-CX was higher than that for HC-CX. There was no significant difference among the μTBSs of EB-Cem, EB-CX, HC-Cem, and HC-CX (p > 0.05). Significance: The crowns fabricated with the experimental CAD/CAM RC incorporating S-PRG filler yielded greater fracture loads and reliability than the crowns manufactured with commercially available CAD/CAM RC regardless of the luting materials. These findings suggest that the experimental CAD/CAM RC crown may be clinically useful for the restoration of primary molars.
Publisher	Elsevier Inc.
Source Title	Dental Materials
Volume (Issue)	39(7)
Page	640-647
Date of Issued	2023-07-01
Language	English
Handle URL	https://hdl.handle.net/11094/92521
PISSN	01095641
NCID	AA10443138
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1016/j.dental.2023.04.006
Access Rights	open access
CopyRight	This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Dental Materials. 2023, 39(7), p. 640-647
DC.title	In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration
DC.creator	Nakase, Yutaro
	Yamaguchi, Satoshi
	Jalkh, Ernesto B.Benalcázar
	Atria, Pablo J.
	Witek, Lukasz
	Bonfante, Estevam A.
	Li, Hefei
	Sakai, Takahiko
	Okawa, Rena
	Nakano, Kazuhiko
	Imazato, Satoshi
DC.publisher	Elsevier Inc.
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2023-07-01
DC.identifier	https://doi.org/10.1016/j.dental.2023.04.006
DC.subject	CAD/CAM
	Fatigue
	Glass ionomer cements
	Primary teeth
	Resin composites
DC.description	Nakase Y., Yamaguchi S., Jalkh E.B.B., et al. In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration. Dental Materials 39, 640 (2023); https://doi.org/10.1016/j.dental.2023.04.006.
DCTERMS.abstract	Objective: To evaluate the reliability, maximum principal stress, shear stress, and crack initiation of a computer-aided design/computer-aided manufacturing (CAD/CAM) resin composite (RC) incorporating surface pre-reacted glass (S-PRG) filler for primary molar teeth. Methods: Mandibular primary molar crowns fabricated by experimental (EB) or commercially available CAD/CAM RCs (HC) were prepared and cemented to a resinous abutment tooth using an adhesive resin cement (Cem) or a conventional glass-ionomer cement (CX). These specimens were subjected to a single compressive test (n = 5/each) and the step-stress accelerated life testing (SSALT) (n = 12/each). Data was evaluated using Weibull analyses and reliability was calculated. Afterwards, the maximum principal stress and crack initiation point of each crown was analyzed by finite element analysis. To evaluate bonding of EB and HC to dentin, microtensile bond strength (μTBS) testing was conducted using primary molar teeth (n = 10/each). Results: There was no significant difference between the fracture loads of EB and HC for either cement (p > 0.05). The fracture loads of EB-CX and HC-CX were significantly lower than EB-Cem and HC-Cem (p < 0.05). The reliability at 600 N for EB-Cem was greater than that for EB-CX, HC-Cem, and HC-CX. The maximum principal stress concentrated on EB was lower than that on HC. The shear stress concentrated in the cement layer for EB-CX was higher than that for HC-CX. There was no significant difference among the μTBSs of EB-Cem, EB-CX, HC-Cem, and HC-CX (p > 0.05). Significance: The crowns fabricated with the experimental CAD/CAM RC incorporating S-PRG filler yielded greater fracture loads and reliability than the crowns manufactured with commercially available CAD/CAM RC regardless of the luting materials. These findings suggest that the experimental CAD/CAM RC crown may be clinically useful for the restoration of primary molars.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	92521
citation_title	In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration
citation_author	Nakase, Yutaro
	Yamaguchi, Satoshi
	Jalkh, Ernesto B.Benalcázar
	Atria, Pablo J.
	Witek, Lukasz
	Bonfante, Estevam A.
	Li, Hefei
	Sakai, Takahiko
	Okawa, Rena
	Nakano, Kazuhiko
	Imazato, Satoshi
citation_publisher	Elsevier Inc.
citation_language	English
citation_date	2023-07-01
citation_journal_title	Dental Materials
citation_volume	39
citation_issue	7
citation_firstpage	640
citation_lastpage	647
citation_doi	https://doi.org/10.1016/j.dental.2023.04.006
citation_public_url	https://hdl.handle.net/11094/92521

In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration

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