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KMID : 0358920230500040443
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Journal of the Korean Academy of Pedodontics
2023 Volume.50 No. 4 p.443 ~ p.451
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Comparison of Shear Bond Strength in Novel Calcium Silicate-Based Materials to Composite Resin
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Shin Won-Kyu
Kim Hyun-Tae
Song Ji-Soo
Shin Teo-Jeon
Kim Young-Jae
Kim Jung-Wook
Jang Ki-Taeg
Hyun Hong-Keun
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Abstract
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The purpose of this study was to evaluate whether the newly introduced calcium silicate-based materials with fast-setting properties could be appropriately used as basement materials in indirect pulp treatment (IPT). This was performed by quantifying the durability of adhesion between the material and composite resin, measured by the shear bond strength (SBS). Five calcium silicate-based materials, TheraCal LC® (TLC), TheraCal PT® (TPT), TheraBase® (TB), Well-Root™ PT (WPT), and Endocem® MTA (EMTA), as well as two glass ionomer-based materials, Fuji II and Fuji II LC, were included. Specimens containing these materials were manufactured and bonded to composite resin with a universal adhesive applied in self-etch mode. The SBS values and failure modes were recorded, and the mean SBSs of the materials were compared. Both TPT and TB exhibited SBS values that were similar to TLC, while both WPT and EMTA appeared to have statistically lower SBS values. Mixed failure was commonly observed in TLC and TPT, while all WPT and EMTA samples showed cohesive failure. In comparison with TLC and TPT, more samples with cohesive failure were observed in TB, implying that this material forms a stronger bond with composite resin. Together with the ability of TB to chemically bind to dentin due to its 10-methacryloyloxydecyl dihydrogen phosphate component, TB seems to be a promising material for IPT within the limitations of this in vitro study.
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KEYWORD
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Calcium silicate-based materials, Shear bond strength, Indirect pulp treatment
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