Evaluation of the Shear Bond Strength of Immediate and Delayed Restorations of Various Calcium Silicate-Based Materials with Fiber-Reinforced Composite Resin Materials
Date
02.10.2023Metadata
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Candan M, Altinay Karaca FK, Öznurhan F. Evaluation of the Shear Bond Strength of Immediate and Delayed Restorations of Various Calcium Silicate-Based Materials with Fiber-Reinforced Composite Resin Materials. Polymers (Basel). 2023 Oct 2;15(19):3971. doi: 10.3390/polym15193971. PMID: 37836020; PMCID: PMC10575331.Abstract
Abstract: Due to significant tissue loss in teeth requiring pulp treatments, hermetic restoration of
the remaining dental tissues is one of the most crucial factors in determining the treatment’s success.
The adhesion of composite resins to calcium silicate cements (CSCs) is considered challenging.
Consequently, it is crucial to identify the optimal method for obtaining optimal adhesion. The aim
of the present study is to evaluate the shear bond strength (SBS) values of immediate and delayed
restorations with fiber-reinforced composites on powder–liquid, premixed, and resin-containing
flowable CSCs. In the present study, the SBS values obtained after immediate (14 min) and delayed
(7 days) restorations of three different CSCs (NeoMTA2, NeoPutty, and TheraCal PT) with three different
resin composite materials (EverX FlowTM, EverX PosteriorTM, and Filtek Z550) were compared.
The fracture types were evaluated using a stereomicroscope and SEM. TheraCal PT had the highest
SBS values for both immediate and delayed restorations, and the comparison with other materials
showed a statistically significant difference (p = 0.001). In contrast, there was no statistically significant
difference between the SBS values of NeoMTA and NeoPutty (p > 0.05). In both immediate and delayed
restorations, there was no statistically significant difference between nanohybrid and fiber-reinforced
composites (p > 0.05). The simple use and strong bonding ability of TheraCal PT with composite resins
may provide support for the idea that it is suitable for pulpal interventions. Nevertheless, due to
the in vitro nature of this study, additional in vitro and clinical studies are required to investigate the
material’s physical, mechanical, and biological properties for use in clinical applications.