Effects of the addition of nanoparticulate calcium carbonate on setting time, dimensional change, compressive strength, solubility and <scp>pH</scp> of MTA

Bernardi, Anarela Vassen; Bortoluzzi, Eduardo Antunes; Felippe, Wilson Tadeu; Felippe, Mara Cristina Santos; Wan, Wenying; Teixeira, Cleonice da Silveira

doi:10.1111/iej.12594

Cited by 30 publications

(30 citation statements)

References 41 publications

(64 reference statements)

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“…Compressive strength indicates the quality of hydration process and increased amount of compressive strength over time in both groups in our study is consistent with the results of previous studies (5,15,26). This indicates that MTA was hydrated from day 4 to 21 and obtained its strength to some extent.…”

Section: Discussionsupporting

confidence: 93%

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Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate

et al. 2017

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Background This study was carried out to evaluate the biocompatibility of zeolite-silver-zinc (Ze-Ag-Zn) nanoparticles and their effect on the compressive strength of Mineral Trioxide Aggregate (MTA). Material and Methods Biocompatibility was evaluated by an MTT assay on the pulmonary adenocarcinoma cells with 0.05, 0.1, 0.25, 0.5, 1 and 5 mg/mL concentrations of Ze-Ag-Zn. For compressive strength test, four groups containing 15 stainless-steel cylinders with an internal diameter of 4 and a height of 6 mm were prepared and MTA (groups 1 and 2) or MTA + 2% Ze-Ag-Zn (groups 3 and 4) were placed in the cylinders. The compressive strength was evaluated using a universal testing machine 4 days after mixing in groups 1 and 3, and 21 days after mixing in groups 2 and 4. Results There was no significant difference between cytotoxicity of different concentrations. The highest (52.22±18.92 MPa) and lowest (19.57±5.76 MPa) compressive strength were observed in MTA group after 21 days and in MTA + 2% Ze-Ag-Zn group after four days, respectively. The effect of time and 2% Ze-Ag-Zn on the compressive strength were significant (P<0.05). Mixing MTA with Ze-Ag-Zn significantly reduced and passage of time from day four to 21 significantly increased the compressive strength. Conclusions Mixing MTA with 2% Ze-Ag-Zn had an adverse effect on the compressive strength of MTA, but this combination had no cytotoxic effects. Key words:Compressive strength, Cytotoxicity, Mineral Trioxide Aggregate, Nanoparticle, Zeolite-Silver-Zinc.

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Section: Discussionsupporting

confidence: 93%

“…Compressive strength of hydraulic cement is as an indicator of its hydration reaction and in fact is indirectly an indication of the setting process of the material. This physical property is affected by the type of MTA, the liquid with which it is mixed, the condensing pressure and techniques used to mix the powder and liquid (14,15). …”

Section: Introductionmentioning

confidence: 99%

Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate

et al. 2017

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“…Recent studies have concluded that nanomodification of MTA increased the surface area of the powder and the surface reaction resulting in better hydration of particles and more calcium hydroxide formation that increases its chemical reactivity (38,39) . Furthermore, the nanomodification of MTA increased the release of calcium ions in post setting time, which can significantly influence the induction of reparative dentin formation of human dental pulp cells (40) .…”

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Bioactive Materials and Their Nano-Counterpart as Pulp Capping Agents in Dogs’ Teeth

Fayyad

Elbaz

2018

Egyptian Dental Journal

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Introduction: Direct pulp-capping is an alternative procedure to extraction or endodontic therapy, in which a medicament is placed directly over the exposed pulp to maintain pulp vitality and facilitate the formation of protective barrier. Aim of study: The purpose of this study was to evaluate and compare the histological response of dog's pulp after direct pulp capping with 3 different materials; MTA, Bioactive glass, CEM and their nanoparticles, at 1 month and 3 month time intervals. Materials & Methods: A total of 112 teeth in 8 dogs were used for this study, where 96 teeth were pulp capped with the investigated materials and 16 teeth were serving as negative control. The 14 teeth of each dog were classified into 6 experimental groups and one control (2 teeth each) as follows

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“…The pH of the water in which the samples were immersed in the solubility test was measured at 1 h, 24 h, and 7 days. The measurements were taken using a pH meter (JENWAY,3505 PH Meter, England) precalibrated against standarad solutions of known pH (7.0) and a constant temperature (25°C) [14] .…”

Section: Phmentioning

confidence: 99%

“…Subsequently, a Vicat indenter of 400 ± 5 g with a flat ended needle of 1.0 ± 0.1 mm in diameter was lowered vertically onto the surface of the test material which initially marked the surface with an indentation. This process was repeated until the mark was no longer visible, and the cement setting time was considered from the start of mixing until this moment [14,17,18] .…”

Section: Setting Timementioning

confidence: 99%

Physicochemical Properties of Silicate Based Biomaterials

Fayyad

2017

Egyptian Dental Journal

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Aim: The purpose of this study was to compare solubility, pH, calcium ion release and setting time of Biodentine, Bioaggregate, and Bioactive glass. Materials and Methods: For the weight loss, pH changes and calcium ions release, the tested specimens were immersed in distilled water. The evaluations were performed at 1h, 24h and 7 d. The measurement of pH was done using digital pH meter. The measurement for Ca 2+ ions release was done using atomic absorption spectrophotometry. The setting time was measured by using a Vicat apparatus. Data were analyzed by One Way ANOVA test and the Tukey post-hoc test at P ≤ 0.05. Results: Biodentine showed the greatest solubility, ultimate increase in pH, and highest calcium ion release at all time intervals and the shortest setting time. Bioactive glass showed alkalinity and moderate Ca2+ release after 1 h that were decreased by time. It also showed negative solubility. Conclusions: Biodentine and Bioaggregate favored proper physico-chemical properties except for solubility it was questionable. Bioactive glass is the best regarding solubility.

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Effects of the addition of nanoparticulate calcium carbonate on setting time, dimensional change, compressive strength, solubility and pH of MTA

Cited by 30 publications

References 41 publications

Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate

Zeolite-silver-zinc nanoparticles: Biocompatibility and their effect on the compressive strength of mineral trioxide aggregate

Comparative Evaluation of Bioactive Materials and Their Nano-Counterpart as Pulp Capping Agents in Dogs’ Teeth

Physicochemical Properties of Silicate Based Biomaterials

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