Influence of variations in the environmental pH on the solubility and water sorption of a calcium silicate‐based root canal sealer

Silva, Emmanuel João Nogueira Leal; Ferreira, Cláudio Malizia Alves; Pinto, Karem Paula; Barbosa, Ana Flávia Almeida; Colaço, Marcos V.; Sassone, Luciana Moura

doi:10.1111/iej.13526

Cited by 22 publications

(35 citation statements)

References 39 publications

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“…Both BC-sealers displayed solubility% with the significant greater values obtained by BC-EndoSequence greater than acceptable level of ISO [18], within 21 days (Figure 1A). The high solubility was previously reported by both BC-sealers in other studies which was either in accordance with acceptable limit (3% mass fraction) [33] or more exaggerated than the recommended with ISO [4,6,8,12,34]. The present result recorded the solubility values within an acceptable limit within the first 14 or 21 days for BC-Endosequence or BC-HiFlow, respectively (Figure 1A).…”

Section: Discussionsupporting

confidence: 89%

“…As a result of the hydration reaction of the calcium silicate-based sealers, calcium hydroxide was formed and dissociated into hydroxyl ions (OH − ). With high alkaline medium, supersaturation of OH − may reduce further ion dissociation and thus reduce sealer solubility [6]. However, Adseal displayed weak alkaline pH (≈8.5) among all experimental periods.…”

Section: Discussionmentioning

confidence: 93%

“…On the other hand, Silva et al 2021 reported that high alkaline environment reduced the solubility of the BC-EndoSequence sealer [6]. As a result of the hydration reaction of the calcium silicate-based sealers, calcium hydroxide was formed and dissociated into hydroxyl ions (OH − ).…”

Section: Discussionmentioning

confidence: 99%

“…It can induce sealer degradation; creating gaps at sealer/dentin or sealer/gutta-percha interface which compromise the apical seal of the obturation system [5] and enhance bacterial leakage [5]. Solubility behavior is influenced by the setting time and pH of the sealer [6]. In fact, the degraded byproducts and the released particles induce changes in pH of the media and in the sealer surface morphology which may affect the biological property of the sealer [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, it is available in injectable syringe enhances easy method of delivery and application. Previous studies reported high solubility of EndoSequence sealer [4,6,8] that exceeds the acceptable level of ISO [15].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Water Solubility on Chemical Composition and Surface Structure of Two Generations of Bioceramic Root Canal Sealers

2022

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Aimed to evaluate the effect of water solubility on chemical properties and surface structure of bioceramic-based (BC-HiFlow and BC-EndoSeqence) compared with resin-based (Adseal) root canal sealers. Fresh mix was inserted into polyethylene mold (n = 10) and subjected to Vicat needle to evaluate the setting time. The set discs were analyzed by Fourier transform infrared (FTIR) spectroscopy then immersed in deionized water for 1, 7, 14 and 28 days. The solubility%, pH changes, released calcium (Ca2+), phosphate (PO43−) and silicon (Si4+) ions were evaluated after each immersion period. The discs were analyzed by scanning electron microscopy/Energy dispersed X-ray (SEM/EDX) before and after solubility test. Although FTIR detected similar composition of both bioceramic-sealers, BC-EndoSequence determined the prolonged setting times. At the end of solubility test, both bioceramic-sealers exhibited significant greater solubility (>3%), alkaline pH (>11) at p < 0.001. Adseal displayed the significant greatest Ca2+ and PO43− released, while BC-HiFlow displayed the significant greatest Si4+ release (p < 0.001). SEM revealed voids and pores on the surface of all tested sealers with the greatest value on Adseal surface. In conclusion, although both bioceramic-sealers had high solubility, BC-Hiflow complied the ISO standard regarding setting time and least surface micropores better than that of BC-EndoSequence.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of Water Solubility on Chemical Composition and Surface Structure of Two Generations of Bioceramic Root Canal Sealers

2022

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Dimensional changes of endodontic sealers—An in vitro model simulating a clinical extrusion scenario during 18 months

Razdan

Benetti

Bakhshandeh

et al. 2023

Clinical & Exp Dental Res

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Objectives To examine the dimensional changes of endodontic sealers during 18 months using three‐dimensional (3D) surface scanning and subtraction radiography in a novel in vitro sealer‐extrusion model. Material and Methods Fifty endodontically instrumented acrylic teeth were randomly allocated to five groups ( n = 10) filled with Apexit Plus, AH Plus, BioRoot RCS, TubliSeal EWT, and gutta‐percha (control). Freshly mixed sealers were intentionally extruded during obturation. All teeth were immersed in a physiologic solution for up to 18 months. Blinded 3D surface scans (resolution: ~10 μm) and digital radiographs of the teeth were obtained at baseline (immediately after obturation); and then after 1 week, and at 1, 3, and 18 months. For blinded assessment of sealer dimensional change, 3D models and radiographs were superimposed using specific software. Volumetric differences, root mean square (RMS), and area change from subtraction radiography measured at each period within each sealer group were thereafter calculated. Repeated measures analyses were done with Bonferroni adjustment for multiple comparisons; standard errors, p values, and 95% confidence intervals (CI) were reported. Results Analyses of the volumetric data confirmed significant, progressive material loss for Apexit Plus when compared to the other investigated sealers or the control group ( p ≤ 0.02). Immersion period significantly influenced the volumetric dimensional changes of Apexit Plus already after 1 month ( p < 0.01). For TubliSeal EW, the effect of the immersion period on the dimensional changes was noted after immersion for 3 months ( p ≤ 0.02), while for BioRoot RCS this was evident only at 18 months ( p < 0.01). Same trends were noted for the RMS data, whereas progressive dimensional changes using subtraction radiography only revealed significant changes for Apexit Plus ( p = 0.01). Conclusions The largest dimensional changes were shown by Apexit Plus, followed by Tubliseal EWT and BioRoot RCS. AH Plus remained stable throughout 18 months.

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In silico toxicity and immunological interactions of components of calcium silicate-based and epoxy resin-based endodontic sealers

Malta,

Barcelos,

Fernandes

et al. 2024

Clin Oral Invest

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Influence of variations in the environmental pH on the solubility and water sorption of a calcium silicate‐based root canal sealer

Abstract: Silva EJNL, Ferreira CM, Pinto KP, Barbosa AFA, Colac ßo MV, Sassone LM. Influence of variations in the environmental pH on the solubility and water sorption of a calcium silicate-based root canal sealer. International

Cited by 22 publications

References 39 publications

Impact of Water Solubility on Chemical Composition and Surface Structure of Two Generations of Bioceramic Root Canal Sealers

Impact of Water Solubility on Chemical Composition and Surface Structure of Two Generations of Bioceramic Root Canal Sealers

Dimensional changes of endodontic sealers—An in vitro model simulating a clinical extrusion scenario during 18 months

In silico toxicity and immunological interactions of components of calcium silicate-based and epoxy resin-based endodontic sealers

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