Bonding super translucent multilayered monolithic zirconia to different foundation materials: an invitro study

The objective of this study was to investigate the effect of bonded substrate, zirconia surface conditioning and the interaction between them on the shear bond strength of monolithic zirconia. Forty-eight monolithic zirconia discs were CAD-CAM fabricated and divided into two groups according to surf...

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Bibliographic Details
Published in:BMC oral health 2024-12, Vol.24 (1), p.1486-11
Main Authors: Essam, Noha, Abo-Elfarag, Shaimaa Ahmed, Attia, Ahmed
Format: Article
Language:English
Subjects:
Bond strength
Composite Resins - chemistry
Computer-Aided Design
Dental Bonding - methods
Dental Materials - chemistry
Dental Stress Analysis
Dentin
Digital signal processors
Foundation materials
Glass Ionomer Cements - chemistry
Humans
Materials Testing
Resin Cements - chemistry
Shear Strength
Super translucent
Surface Properties
Surface treatment
Zirconia
Zirconium - chemistry
Zirconium oxide
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Summary:The objective of this study was to investigate the effect of bonded substrate, zirconia surface conditioning and the interaction between them on the shear bond strength of monolithic zirconia. Forty-eight monolithic zirconia discs were CAD-CAM fabricated and divided into two groups according to surface treatment either as milled and universal primer application (Monobond N, Ivoclar-Vivadent) (P) or sandblasting then universal primer application (Monobond N) (SP). Each main group was further divided into three test groups according to the bonded substrate: dentin (DSP, DP), composite (CSP, CP) or resin modified glass ionomer (RMGI) (GSP, GP). Adhesive resin cement (Multilinik automix, Ivoclar-Vivadent) was used for bonding. Specimens were stored in water bath for six months before thermal cycling for 10,000 cycles to mimic intra oral condition. All specimens underwent shear bond strength test (SBS) using a universal testing machine. Two and one-way ANOVA and Bonferroni Post Hoc tests were used for statistical analyses. The means ± SD SBS of all test groups were recorded in (MPa). DSP group showed the highest mean SBS (22.65 ± 2.0) followed by DP group (18.61 ± 2.55). Meanwhile, GSP and GP groups showed the lowest mean SBS (4.77 ± 0.09, 4.57 ± 0.73 respectively). Sandblasting with priming is recommended as a monolithic zirconia surface treatment method. Dentin is the most reliable substrate followed by composite.
ISSN:1472-6831
1472-6831
DOI:10.1186/s12903-024-05244-z