The Influence of Calcium Chloride on the Setting Time, Solubility, Disintegration, and pH of Mineral Trioxide Aggregate and White Portland Cement with a Radiopacifier

Bortoluzzi, Eduardo Antunes; Broon, Norberto Juárez; Bramante, Clóvis Monteiro; Felippe, Wilson Tadeu; Tanomaru-Filho, Mário; Esberard, Roberto Miranda

doi:10.1016/j.joen.2008.12.018

Cited by 204 publications

(229 citation statements)

References 28 publications

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“…Results showed that the incorporation of CaCl 2 and PMMA accelerated setting time, but decreased the compressive strength of PCs, whereas amalgam alloys, specially the spherical type, significantly decreased setting time and at 30% significantly improved the final strength of PCs. Kogan et al (2006) 12 demonstrated that the addition of 5% CaCl 2 to the composition of a MTA reduced its final setting time by 50%, a decrease that was similar to the one reported by Bortoluzzi et al (2009) 16 with the use of 10% CaCl 2 . A more recent study also showed a reduction of nearly 55% on the setting time of a PC after the addition of 2% CaCl 2 .…”

Section: Discussionsupporting

confidence: 64%

“…17 Sharma and Pandey (1999) 18 found that addition of wastes such as powdered limestone and lime sludge accelerates the hydration of PC, which is related to its setting time. Bortoluzzi et al (2009) 16 suggested that the penetration of CaCl 2 in the pores of cements could accelerate the reaction due to the hydration of silicates which reduced their crystallization time, thus hastening the final setting time of the material. CaCl 2 as an anhydrous salt is strongly hygroscopic, thus the hypothesis proposed by Bortoluzzi et al (2009) 16 seems reasonable and may be related to the decrease in setting time found for the CaCl 2 containing PC in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Bortoluzzi et al (2009) 16 suggested that the penetration of CaCl 2 in the pores of cements could accelerate the reaction due to the hydration of silicates which reduced their crystallization time, thus hastening the final setting time of the material. CaCl 2 as an anhydrous salt is strongly hygroscopic, thus the hypothesis proposed by Bortoluzzi et al (2009) 16 seems reasonable and may be related to the decrease in setting time found for the CaCl 2 containing PC in this study. Although the addition of different concentrations of CaCl 2 yielded a very similar decrease in setting time, the total time of reaction was remarkably different between the current study and the values reported by Ber et al (2007), 19 which showed an average initial setting 12 which had similar results to those found here.…”

Section: Discussionmentioning

confidence: 99%

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Effect of additives on the compressive strength and setting time of a Portland cement

et al. 2010

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Improvements in strength and setting time of Portland cements (PC) are needed to enhance their performance as endodontic and load bearing materials. This study sought to enhance the compressive strength and setting time of a PC by adding one of the following additives: 20% and 30% poly-methylmethacrylate (PMMA), 20% and 30% irregular and spherical amalgam alloys, and 10% CaCl 2 . The control consisted of unreinforced PC specimens. Setting time was determined using a Gillmore apparatus according to standardized methods while compressive strength was measured using a universal testing machine after 21 hours or 60 days of water storage. Data were analyzed by ANOVA, Tukey and Games-Howell tests (α = 5%). All additives significantly decreased both initial and final setting times as compared with the PC-control (p < .05). 30% PMMA and 30% irregular alloy had the lowest values of initial setting time. 30% irregular alloy also produced the lowest values of final setting time while 30% spherical alloy yielded the highest (p < .05). No differences were detected between the compressive strength values of 21 hours and 60 days. While 10% CaCl 2 , 20% and 30% PMMA produced values significantly lower than the PC-control, 30% spherical alloy significantly improved the compressive strength of the reinforced PC (p < .05). In summary, all additives significantly reduced the setting time and 30% spherical amalgam alloy yielded a significant increase in compressive strength for the tested PC, which might represent an improved composition for PCs to expand their use as endodontic and potentially load bearing materials.

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effect of additives on the compressive strength and setting time of a Portland cement

et al. 2010

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“…In this study, Biodentine was able to set faster than MTA and ZOE cement and this is possibly related to the addition of calcium chloride in the liquid vehicle that acts as setting accelerator (3). The accelerating effect of calcium chloride on MTA and Portland cement has been reported in the dental literature (12). This finding is important, taking into consideration that retrograde fillings are performed in surgical settings and cements will be immediately exposed to bleeding; blood contamination may interfere on bond strength values of MTA and Biodentine as root-end filling materials (13).…”

Section: Discussionmentioning

confidence: 85%

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

et al. 2017

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The aim of this study was to evaluate the physicochemical properties and the apical dentin bond strength of the tricalcium silicate-based Biodentine in comparison to white MTA and zinc oxide eugenol-based cement (ZOE). Setting time and radiopacity were evaluated according to ISO 6876:2012 specification. Final setting time, compressive strength and pH were also assessed. Material's bond strength to the apical root canal dentin was measured by the push-out assay. Data were analyzed by ANOVA and TukeyKrammer post-hoc test. Biodentine presented the shortest initial (16.2±1.48 min) and final setting time (35.4±5.55 min). Radiopacity of Biodentine (2.79±0.27 mmAl) does not agree with ISO 6876:2012 specifications. On the other hand, Biodentine showed higher compressive strength after 21 days (37.22±5.27 MPa) and higher dentin bond strength (11.2±2.16 MPa) in comparison to white MTA (27.68±3.56 MPa for compressive strength and 2.98±0.64 MPa for bond strength) (p<0.05). Both MTA and Biodentine produced an alkaline environment (approximately pH 10) (p>0.05) compared to ZOE (pH 7). It may be concluded that Biodentine exhibited faster setting, higher long-term compressive strength and bond strength to the apical dentin than MTA and ZOE.

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“…6 To improve MTA's setting time, many investigations have described MTA preparations with various additives. [12][13][14][15][16][17][18][19][20][21][22][23][24][25] Commendably, many of these studies also examined if the additives had effects on various physical properties. Although they indicated further studies were required, 1 study cautiously recommended using either 5% calcium chloride (CaCl2) or sodium hypochlorite (NaOCl) gel in place of water when mixing MTA to be used in single-visit endodontic procedures.…”

mentioning

confidence: 99%

Effect of Additives on Mineral Trioxide Aggregate Setting Reaction Product Formation

Zapf

Chedella

Berzins

2015

Journal of Endodontics

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Introduction: Mineral trioxide aggregate (MTA) sets via hydration of calcium silicates to yield calcium silicate hydrates and calcium hydroxide (Ca[OH]2). However, a drawback of MTA is its long setting time. Therefore, many additives have been suggested to reduce the setting time. The effect those additives have on setting reaction product formation has been ignored. The objective was to examine the effect additives have on MTA's setting time and setting reaction using differential scanning calorimetry (DSC).

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The Influence of Calcium Chloride on the Setting Time, Solubility, Disintegration, and pH of Mineral Trioxide Aggregate and White Portland Cement with a Radiopacifier

Cited by 204 publications

References 28 publications

Effect of additives on the compressive strength and setting time of a Portland cement

Effect of additives on the compressive strength and setting time of a Portland cement

Physicochemical Properties and Dentin Bond Strength of a Tricalcium Silicate-Based Retrograde Material

Effect of Additives on Mineral Trioxide Aggregate Setting Reaction Product Formation

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