Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing

Chowdhury, Abu Faem Mohammad Almas; Islam, Rafiqul; Alam, Arefin; Matsumoto, Mariko; Yamauti, Monica; Carvalho, Ricardo Marins; Sano, Hidehiko

Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing

Chowdhury, Abu Faem Mohammad Almas; Islam, Rafiqul; Alam, Arefin et al.

International Journal of Molecular Sciences, 2019, 20(21), 5381

Permalink : https://hdl.handle.net/2115/76498

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https://doi.org/10.3390/ijms20215381			44

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アクセス権	open access
URI	https://hdl.handle.net/2115/76498
タイトル	Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing
著者	Chowdhury, Abu Faem Mohammad Almas ; Islam, Rafiqul ; Alam, Arefin ; Matsumoto, Mariko ; Yamauti, Monica ; Carvalho, Ricardo Marins ; Sano, Hidehiko
e-Rad_Researcher 00844440 著者名 Chowdhury, Abu Faem Mohammad Almas
著者名 Islam, Rafiqul
著者名 Alam, Arefin
e-Rad_Researcher 30733969 著者名 Matsumoto, Mariko
著者名 Yamauti, Monica
著者名 Carvalho, Ricardo Marins
e-Rad_Researcher 90205998 著者名 Sano, Hidehiko
言語	英語
キーワード	adhesion
	dental bonding
	smear layer
	dentin-bonding agents
	self-etch adhesive
	universal adhesive
	application mode
	double application
	bond strength
	transmission electron microscopy
発行日	2019-11
出版者	MDPI
収録物名	International Journal of Molecular Sciences
巻(号)	20(21)
ページ	5381
抄録	The removal or modification of smear layers that cover the dentin is critical to allow the penetration of adhesive molecules and to ensure a strong bond between resin and dentin. Aiming to establish a model for clinically-relevant dentin-bond testing, we evaluated the effects of smear layers created by abrasives having similar coarseness (180-grit SiC paper; fine-grit diamond bur) and application modes (single application; double application) on the microtensile bond strengths (mu TBS) of two currently available universal adhesives (G-Premio Bond; Scotchbond Universal Adhesive) and a two-step self-etch adhesive (Clearfil Megabond 2). Sixty extracted human third molars were used for the mu TBS test. Data were analyzed by three-way ANOVA and Tukey's test (alpha = 0.05). Fracture modes were determined using stereomicroscopy. An additional 24 third molars were prepared for observation of the resin-dentin interface by TEM and adhesive-smear layer interaction by SEM. mu TBS was significantly affected by the adhesives and their application modes (p < 0.001), implying that the double application of universal adhesives should be recommended to improve their performance. The effect of smear layers was not significant (p > 0.05), indicating that 180-grit SiC papers could be used to prepare dentin as a substitute for fine-grit diamond burs for dentin-bond testing in laboratory settings.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/ijms20215381