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Gradual dehydration affects the mechanical properties and bonding outcome of adhesives to dentin

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Title: Gradual dehydration affects the mechanical properties and bonding outcome of adhesives to dentin
Authors: Chowdhury, A. F. M. Almas Browse this author →KAKEN DB
Saikaew, Pipop Browse this author
Matsumoto, Mariko Browse this author →KAKEN DB
Sano, Hidehiko Browse this author →KAKEN DB
Carvalho, Ricardo M. Browse this author
Keywords: Dehydration
Two-step self-etch adhesive
Bond strength
Elastic modulus
Issue Date: Jun-2019
Publisher: The Japanese Society for Dental Materials and Devices
Journal Title: Dental materials journal
Volume: 38
Issue: 3
Start Page: 361
End Page: 367
Publisher DOI: 10.4012/dmj.2018-142
Abstract: This study evaluated the effects of dehydration on the mechanical properties of adhesive resins and dentin, and on the microtensile bond strength (mu TBS) of adhesives. Third molars were randomly bonded with Clearfil Mega Bond (MB) or Clearfil SE Bond 2 (SE). After water-storage (37 degrees C; 24 h), mu TBS was obtained in 'wet' (tested after 5 min of removal from storage) and 'dehydrated' (tested after 10, 15 min and 24 h) conditions by a universal tester (crosshead speed: 1 mm/min). Data were analyzed by two-way ANOVA and Duncan's test. Hardness (H), Elastic modulus (E) and weight-loss of dentin beams and adhesive-resin discs were also monitored over time and analyzed by one-way repeated measures ANOVA and Bonferroni's test (alpha=0.05). Significant differences in bond strength were observed for adhesives and for conditions. Except for dentin's E, dehydration caused significant gradual changes in the H, E and weight of adhesive resins and dentin (p<0.05).
Type: article
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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