Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis

Matsuoka, Takashi; Nakano, Tamaki; Yamaguchi, Satoshi; Ono, Shinji; Watanabe, Shota; Sato, Takumi; Yatani, Hirofumi

doi:https://doi.org/10.3390/ma14092421

Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis

Matsuoka, Takashi; Nakano, Tamaki; Yamaguchi, Satoshi et al.

Materials, 2021, 14(9), 2421

アクセス数:1,009件（2025-08-15 23:01 集計）

固定URL: https://hdl.handle.net/11094/93101

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タイトル	Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis
著者	著者名 Matsuoka, Takashi
	NRID 1000040379079 1000040379079 researchmap permalink nkn nkn Scopus Author ID 7403895984 7403895984 著者名 Nakano, Tamaki
	NRID 1000030397773 1000030397773 ORCID 0000-0002-4661-8821 0000-0002-4661-8821 researchmap permalink YamaguchiS_30397773 YamaguchiS_30397773 Scopus Author ID 7403873463 7403873463 著者名 Yamaguchi, Satoshi
	著者名 Ono, Shinji
	著者名 Watanabe, Shota
	著者名 Sato, Takumi
	NRID 1000080174530 1000080174530 著者名 Yatani, Hirofumi
キーワード等	Biomechanics
	CAD-CAM
	Dental implants
	Finite element analysis
内容	Matsuoka T., Nakano T., Yamaguchi S., et al. Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis. Materials 14, 2421 (2021); https://doi.org/10.3390/ma14092421.
抄録	The attainment of a good aesthetic outcome in dental implant treatment requires inter-implant papilla reconstruction, which is very difficult to perform. Maintenance of the inter-implant bone is essential for maintenance of the inter-implant papilla. The aim of this study was to investigate the mechanical influences of the implant–abutment connection type and inter-implant distance on the inter-implant bone by using three-dimensional finite element analysis. Three computer-aided design models of two-piece implants were designed: external connection (EC), internal connection (IC), and conical connection (CC). In each model, two identical implants were placed with inter-implant distances of 3.0, 2.5, and 2.0 mm. The maximum principal stress and microgap were evaluated. The stress values of the inter-implant bone decreased in the following order: IC, EC, and CC. The microgap decreased in the following order: EC, IC, and CC. Regardless of the type of implant– abutment connection, the stress of the inter-implant bone increased as the inter-implant distance decreased. The microgap barely changed as the inter-implant distance decreased. A CC implant is a mechanically advantageous implant–abutment connection type for maintenance of the inter-implant bone. With an inter-implant distance of less than 3.0 mm, use of a CC implant might suppress absorption of the inter-implant bone.
出版者	MDPI
収録物名	Materials
巻(号)	14(9)
ページ	2421
刊行年月	2021-05-06
言語	英語
ハンドルURL	https://hdl.handle.net/11094/93101
eISSN	19961944
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.3390/ma14092421
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Materials. 2021, 14(9), p. 2421
DC.title	Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis
DC.creator	Matsuoka, Takashi
	Nakano, Tamaki
	Yamaguchi, Satoshi
	Ono, Shinji
	Watanabe, Shota
	Sato, Takumi
	Yatani, Hirofumi
DC.publisher	MDPI
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2021-05-06
DC.identifier	https://doi.org/10.3390/ma14092421
DC.subject	Biomechanics
	CAD-CAM
	Dental implants
	Finite element analysis
DC.description	Matsuoka T., Nakano T., Yamaguchi S., et al. Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis. Materials 14, 2421 (2021); https://doi.org/10.3390/ma14092421.
DCTERMS.abstract	The attainment of a good aesthetic outcome in dental implant treatment requires inter-implant papilla reconstruction, which is very difficult to perform. Maintenance of the inter-implant bone is essential for maintenance of the inter-implant papilla. The aim of this study was to investigate the mechanical influences of the implant–abutment connection type and inter-implant distance on the inter-implant bone by using three-dimensional finite element analysis. Three computer-aided design models of two-piece implants were designed: external connection (EC), internal connection (IC), and conical connection (CC). In each model, two identical implants were placed with inter-implant distances of 3.0, 2.5, and 2.0 mm. The maximum principal stress and microgap were evaluated. The stress values of the inter-implant bone decreased in the following order: IC, EC, and CC. The microgap decreased in the following order: EC, IC, and CC. Regardless of the type of implant– abutment connection, the stress of the inter-implant bone increased as the inter-implant distance decreased. The microgap barely changed as the inter-implant distance decreased. A CC implant is a mechanically advantageous implant–abutment connection type for maintenance of the inter-implant bone. With an inter-implant distance of less than 3.0 mm, use of a CC implant might suppress absorption of the inter-implant bone.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	93101
citation_title	Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis
citation_author	Matsuoka, Takashi
	Nakano, Tamaki
	Yamaguchi, Satoshi
	Ono, Shinji
	Watanabe, Shota
	Sato, Takumi
	Yatani, Hirofumi
citation_publisher	MDPI
citation_language	英語
citation_date	2021-05-06
citation_journal_title	Materials
citation_volume	14
citation_issue	9
citation_firstpage	2421
citation_doi	https://doi.org/10.3390/ma14092421
citation_public_url	https://hdl.handle.net/11094/93101

Effects of implant–abutment connection type and inter-implant distance on inter-implant bone stress and microgap: Three-dimensional finite element analysis

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