What does this research mean for the field?

Calcium silicate-based bioceramic sealers demonstrate the most stable long-term push-out bond strength, and their volumetric expansion, along with that of silicone bioactive glass sealers, is associated with improvements in bond strength and dentine adaptation over time. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate time-dependent volumetric changes, push-out bond strength, and dentine adaptation of epoxy resin, silicone bioactive glass, and bioceramic root canal sealers over 60 days.

September 2, 2026European Journal of DentistryOpen Access

Volumetric Alterations and Bond Performance of Epoxy Resin, Silicone Bioactive Glass, and Bioceramic Sealers Following Obturation

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Authors

TNThanh Quang Nguyen PTPinpana Thaweesit KCKanet Chotvorrarak

Discussion

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Overview

In vitro study demonstrates superior bond strength and volumetric expansion in bioceramic sealers over 60 days, indicating enhanced root canal obturation stability.

Key Points

To evaluate time-dependent volumetric changes, push-out bond strength, and dentine adaptation of epoxy resin, silicone bioactive glass, and bioceramic root canal sealers over 60 days.
Instrumented 125 mandibular premolars and assigned them into five groups (n=25) obturated with AH Plus Jet, GuttaFlow Bioseal, CeraSeal, Endosequence BC, or AH Plus Bioceramic via the matched single-cone technique.
Subdivided samples (n=10 per time point) to assess push-out bond strength through mechanical testing and dentine adaptation via scanning electron microscopy at 2 and 60 days post-obturation.
Measured longitudinal volumetric changes of the sealers over 60 days using micro-computed tomography (n=5 per group).
At 2 days post-obturation, AH Plus Jet, CeraSeal, and Endosequence BC achieved higher bond strength than GuttaFlow Bioseal and AH Plus Bioceramic (p < 0.001); at 60 days, CeraSeal and Endosequence BC showed the highest bond strength (p < 0.001), while GuttaFlow Bioseal showed the lowest.
Over 60 days, GuttaFlow Bioseal, CeraSeal, Endosequence BC, and AH Plus Bioceramic showed significant gains in bond strength (p < 0.001) and dentine adaptation (p < 0.05), whereas AH Plus Jet remained unchanged in bond strength (p = 0.87) and adaptation (p = 0.76).
Micro-computed tomography demonstrated volumetric expansion in silicone bioactive glass and bioceramic sealers, whereas the epoxy resin sealer exhibited slight shrinkage after setting.

Cite This Study

Nguyen et al. (2026) studied this question.

synapsesocial.com/papers/6a97e2f6c562ede874ec77fc https://doi.org/10.1055/s-0046-1827030

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September 2, 2026European Journal of DentistryOpen Access

Volumetric Alterations and Bond Performance of Epoxy Resin, Silicone Bioactive Glass, and Bioceramic Sealers Following Obturation

View Full Paper

Ask AI

Bookmark

Authors

TNThanh Quang Nguyen PTPinpana Thaweesit KCKanet Chotvorrarak

Discussion

Member takes

Overview

In vitro study demonstrates superior bond strength and volumetric expansion in bioceramic sealers over 60 days, indicating enhanced root canal obturation stability.

Key Points

To evaluate time-dependent volumetric changes, push-out bond strength, and dentine adaptation of epoxy resin, silicone bioactive glass, and bioceramic root canal sealers over 60 days.
Instrumented 125 mandibular premolars and assigned them into five groups (n=25) obturated with AH Plus Jet, GuttaFlow Bioseal, CeraSeal, Endosequence BC, or AH Plus Bioceramic via the matched single-cone technique.
Subdivided samples (n=10 per time point) to assess push-out bond strength through mechanical testing and dentine adaptation via scanning electron microscopy at 2 and 60 days post-obturation.
Measured longitudinal volumetric changes of the sealers over 60 days using micro-computed tomography (n=5 per group).
At 2 days post-obturation, AH Plus Jet, CeraSeal, and Endosequence BC achieved higher bond strength than GuttaFlow Bioseal and AH Plus Bioceramic (p < 0.001); at 60 days, CeraSeal and Endosequence BC showed the highest bond strength (p < 0.001), while GuttaFlow Bioseal showed the lowest.
Over 60 days, GuttaFlow Bioseal, CeraSeal, Endosequence BC, and AH Plus Bioceramic showed significant gains in bond strength (p < 0.001) and dentine adaptation (p < 0.05), whereas AH Plus Jet remained unchanged in bond strength (p = 0.87) and adaptation (p = 0.76).
Micro-computed tomography demonstrated volumetric expansion in silicone bioactive glass and bioceramic sealers, whereas the epoxy resin sealer exhibited slight shrinkage after setting.

Cite This Study

Nguyen et al. (2026) studied this question.

synapsesocial.com/papers/6a97e2f6c562ede874ec77fc https://doi.org/10.1055/s-0046-1827030

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