Elemental chemical composition and phase analysis by means of PIXE, DSC, TGA, and DRX of MTA Angelus® and a white Portland cement

Ledesma, Abigailt Flores; Santana, Federico Humberto Barceló; Galindo, Lauro Bucio; Alatorre, Javier; Sil, José Luis Ruvalcaba

doi:10.1016/j.rodmex.2016.08.015

Cited by 4 publications

(7 citation statements)

References 19 publications

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“…Previous chemical composition studies of MTA Angelus [14] have reported that there is no calcium sulfate in its composition, so ettringite could not be identified. However, the Portland cement used in this study for the MTA Exp showed a low content of calcium sulfate (CaSO 4 ) [14], so ettringite was also detected in BG10 and WO20. MTA Angelus showed a tendency to contract, while MTA Exp, WO20, and BG10 underwent expansion.…”

Section: Discussionmentioning

confidence: 94%

“…The experimental MTA cement (MTA Exp) was prepared using white Portland cement (CPO40B, Cruz Azul, México, Batch 033442) which has been previously characterized [14], with the addition of 20 wt% of Bi 2 O 3 (Aldrich Chemical Company Inc., Burlington, MA, USA). Commercial white MTA Angelus (Angelus Dental Products Industry, Londrina, Brazil) was used as the control.…”

Section: Methodsmentioning

confidence: 99%

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Physical properties, marginal adaptation and bioactivity of an experimental mineral trioxide aggregate-like cement modified with bioactive materials

et al. 2023

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Purpose: To evaluate the effect of adding wollastonite and bioactive glass to an experimental mineral trioxide aggregate-like cement (MTA) on the dimensional stability, compressive strength, solubility, bioactivity, and marginal adaptation by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Methods: Four groups were evaluated at 7, 14, and 21 days: MTA Angelus, experimental MTA-like cement (MTA Exp), BG10 (MTA Exp+10 wt% bioactive glass), and WO20 (MTA Exp+20 wt% wollastonite). To evaluate marginal adaptation, extracted teeth were endodontically obturated and root-end cavities were prepared and filled with the tested materials. Results: Cements with bioactive materials showed minimal dimensional changes. Adding wollastonite or bioactive glass to MTA Exp reduces the compressive strength but does not affect solubility. Bismite (Bi 2 O 3 ), larnite (Ca 2 SiO 4 ), calcite (CaCO 3 ) and carbonated hydroxyapatite (Ca 5 [PO 4 ,CO 3 ] 3 [OH]) were identified in the four cements; ettringite (Ca 6 Al 2 [SO 4 ] 3 [OH] 12 •26H 2 O) and bismutite ([BiO] 2 CO 3 ) were only observed in MTA Exp, BG10, and WO20. Cement-dentin interfaces were not observed after 14 days on the BG10 and WO20 cement composites due to the ettringite formation. Conclusion: Acicular growing crystals typical of hydroxyapatite were found on the surfaces of all cements. An improved marginal adaptation was observed with the addition of wollastonite or bioactive glass.

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Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Physical properties, marginal adaptation and bioactivity of an experimental mineral trioxide aggregate-like cement modified with bioactive materials

et al. 2023

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“…2 In terms of chemical composition, MTA appears to be similar to the Portland cement. 3 This cement commonly used in manufacturing of concrete for the building and construction industry. 3 A number of studies have investigated biocompatibility 2 , physical properties4 and composition 3 of Portland cement to explore if it can be used as a viable substitute of MTA.…”

mentioning

confidence: 99%

“…Both products believed to be comparable to each other. [2][3][4] The similarity of Portland cement to ProRoot MTA has been documented in a number of studies. [1][2][3][4][5] One of the very important usages of Portland cement is to employ it as a conditioner for industrial waste so that the disposal of sludge produced in the industrial waste containing toxic metals becomes safe.…”

mentioning

confidence: 99%

“…[2][3][4] The similarity of Portland cement to ProRoot MTA has been documented in a number of studies. [1][2][3][4][5] One of the very important usages of Portland cement is to employ it as a conditioner for industrial waste so that the disposal of sludge produced in the industrial waste containing toxic metals becomes safe. 5 Portland cement is manufactured in a series of procedures which include mixing of calcareous materials and argillaceous materials and then heating it up in a kiln at 1,450 o C thereby producing a clinker, which is then grounded with gypsum-forming cement.…”

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confidence: 99%

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Determination of Lead, Arsenic and Chromium Contents in Two Types of Mineral Trioxide Aggregate Using Atomic Absorption Spectrometry

Khan¹,

Khan²

2020

J Pak Dent Assoc

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OBJECTIVE: To evaluate the acid-soluble Arsenic, Lead, and Chromium contents in the two varieties of Mineral Trioxide Aggregate (MTA) using Atomic Absorption Spectrophotometry. METHODOLOGY: Analysis of Arsenic, Lead, and Chromium in the two products of MTS [MProRoot MTA and MTA Angelus] were done using graphite furnace atomic absorption spectrophotometry employing 2.4 mol/L of hydrochloric acid for digestion of materials. The test materials were subjected to incubate in water and simulated body fluid (SBF) so that the leach out metal ions from the material can also be quantified. Descriptive statistics reported along with ANOVA for comparison of quantitative analysis of Arsenic, Lead, and Chromium in the extracts of the two MTA products. One way ANOVA was applied to compare the leach out of metals over 15 days. Level of significance was kept at 0.05. RESULTS: Both varieties of MTA [ProRoot MTA and MTA Angelus] leached out extracts into water and SBF showing lower values of Arsenic and Lead contents in accordance to the limit set by ISO 9917-1 (2007). However, extracts of both the products had comparatively higher amount of Chromium ions. CONCLUSIONS: The total amount of Arsenic, Chromium, and Lead released from the two cements were found to be far below than what is considered as clinically harmful. KEYWORDS: Chromium; Arsenic; Lead, heavy metals; Mineral trioxide aggregate HOW TO CITE: Khan TN, Khan FR. Determination of lead, arsenic and chromium contents in two types of mineral trioxide aggregate using atomic absorption spectrometry. J Pak Dent Assoc 2020;29(4):223-227.

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Research on electromagnetic wave absorption properties of Portland cement

Dai,

Wu,

Wang

et al. 2024

Materials Research Bulletin

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Elemental chemical composition and phase analysis by means of PIXE, DSC, TGA, and DRX of MTA Angelus® and a white Portland cement

Cited by 4 publications

References 19 publications

Physical properties, marginal adaptation and bioactivity of an experimental mineral trioxide aggregate-like cement modified with bioactive materials

Physical properties, marginal adaptation and bioactivity of an experimental mineral trioxide aggregate-like cement modified with bioactive materials

Determination of Lead, Arsenic and Chromium Contents in Two Types of Mineral Trioxide Aggregate Using Atomic Absorption Spectrometry

Research on electromagnetic wave absorption properties of Portland cement

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