Medium-term evaluation of the bond strength and dentin penetration of self-adhesive resin cements to root dentin.

Autor: Gelio MB; Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil., Zaniboni JF; Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil., Monteiro J; Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil., Besegato JF; School of Dentistry (FAODO), Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso, Brazil., Pereira JR; University of Southern Santa Catarina, Tubarão, Santa Catarina, Brazil., Buchaim RL; Department of Biological Sciences - Anatomy, Bauru School of Dentistry, Universidade de São Paulo - USP, São Paulo, Bauru, Brazil., Kuga MC; Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil.
Jazyk: angličtina
Zdroj: Australian dental journal [Aust Dent J] 2024 Jun; Vol. 69 (2), pp. 93-101. Date of Electronic Publication: 2023 Oct 27.
DOI: 10.1111/adj.12988
Abstrakt: Background: Medium-term evaluate the bond strength and tag formation in root dentin using self-adhesive cements Maxcem Elite (MCE), Relyx U200 (RU2), SeT PP (SPP) and Megalink (MGL) compared to conventional cement Relyx ARC (ARC) for glass fibre post cementation.
Materials and Methods: One hundred bovine incisors roots were endodontically treated and divided into 5 groups (n = 20) according to the cementation system: MCE, RU2, SPP, MGL and ARC. All cementation systems were evaluated at 24 h (1) and 12 months (2) after post cementation. Specimens from the cervical, middle and apical thirds of the root were submitted to push-out bond strength test and confocal laser microscopy to verify the dentin penetration. The adhesive failure mode was classified as adhesive, cohesive and mixed. Data were analysed by one-way ANOVA and Tukey tests (α = 5%).
Results: ARC-1 and ARC-12 showed the highest bond strength (P < 0.05). ARC showed the greatest tag extension, regardless of the third (P < 0.05). The most frequent failure mode in the 24-h analysis was cohesive, regardless of the cement used. For the 12-month analysis, mixed failure was the most frequent.
Conclusion: Conventional cement (ARC) showed the highest bond strength and tag extension, regardless of the evaluation period. In all cementation systems, the bond strength decreased after 12 months. © 2023 Australian Dental Association.
(© 2023 Australian Dental Association.)
Databáze: MEDLINE
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