Effect of chemical removal or mechanical modification of smear layer on dentin adhesion with universal resin adhesives

Pan, Yahui; Jin, Hua; Lu, Chengyu; Wang, Yushi; Nie, Rongrong; Meng, Xiangfeng

doi:10.1016/j.ijadhadh.2023.103498

International Journal of Adhesion and Adhesives

2023

DOI: 10.1016/j.ijadhadh.2023.103498

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Effect of chemical removal or mechanical modification of smear layer on dentin adhesion with universal resin adhesives

Yahui Pan,

Hua Jin,

Chengyu Lu

et al.

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2024

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Cited by 1 publication

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Effect of fit and self-etching adhesive on fiber post retention in endodontically treated teeth

Zhan,

Li,

Cao

et al. 2024

THC

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BACKGROUND: Fiber post (FP) reinforced restoration was widespread in endodontically treated teeth, of which the retention was closely related to fit and operation process. However, the question whether the fit and self-etching adhesive (SED) affect the success of FP restoration still remained unclear. OBJECTIVE: This research aimed to assess how the fit and self-etching adhesive (SED) impact the pull-out bond strength (BS) of glass fiber-reinforced composite posts from the root canal dentin. METHODS: Eighty lower first premolars underwent simulated endodontic treatment, after which their canals were shaped to accommodate a size three RelyX fiber post (FP) (diameter 1.9 mm). They were then divided into 4 equal groups [Unfit post and no SEA (Group UN), Fit post and no SEA (Group FN), Unfit post with SEA (Group UA) and Fit post with SEA (Group FA)] using two different sized FPs and SEA. Cement thickness was acquired by histological analysis and stereomicroscopy. Each sample was tested for pull-out strength through a universal testing machine. Based on the pull-out test, the failure types were observed and scored by visualizing through a stereomicroscope. RESULTS: Group FA demonstrated significantly greater BS compared to Group UN and Group UA, with Group UN showing a statistically significant difference at p< 0.01 and Group UA at p< 0.05. Main failure types in Group FA were Type II, which illustrated that the cement detachment mainly occurred from the post-cement interface. Therefore, Group FA possessed the STRONGEST BS and was most suitable for FP-reinforced crown restorations. CONCLUSIONS: Both the fit and SEA enhanced the pull-out BS. The SEA was critical for BS promotion when the mechanical retention was inadequate.

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Effect of fit and self-etching adhesive on fiber post retention in endodontically treated teeth

Zhan,

Li,

Cao

et al. 2024

THC

View full text Add to dashboard Cite

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Effect of chemical removal or mechanical modification of smear layer on dentin adhesion with universal resin adhesives

Cited by 1 publication

References 34 publications

Effect of fit and self-etching adhesive on fiber post retention in endodontically treated teeth

Effect of fit and self-etching adhesive on fiber post retention in endodontically treated teeth

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