Improvement of the Properties of Mineral Trioxide Aggregate by Mixing with Hydration Accelerators

Lee, Bin-Na; Hwang, Yun-Chan; Jh, Jang; Chang, Hoon-Sang; Hwang, In-Nam; Yang, Sang Yoon; Park, Kyung Hee; Son, Ho-Hyun; Oh, Won-Mann

doi:10.1016/j.joen.2011.06.013

Cited by 60 publications

(51 citation statements)

References 31 publications

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“…34 0.1% citric acid has been found to be similar to 10% CaCl 2 as an accelerant but reduced the compressive strength of ProRoot MTA from 39 MPa to 27.23 MPa. 35 A Nano white MTA (NWMTA) has been described with small amounts of Sr to improve bioacitivity and a reduced particle size that resulted in an increased surface area (7.8 m . 36 This helped reduce the intial setting time from 43 min (WMTA) to 6 min (NWMTA) and also increased the microhardness of NWMTA.…”

Section: Modifications To Compositionmentioning

confidence: 99%

Calcium silicate materials in endodontics

Dutta¹,

Saunders

2014

Dent Update

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Calcium silicate materials have been recently introduced to dentistry and have found wide applications in endodontics because of their favourable biological properties. This review discusses materials that have become available commercially as well as those that are currently experimental. The compositional aspects of Mineral Trioxide Aggregate (MTA) are discussed with modifications and the development of newer materials. Based upon this information, a definition and classification for calcium silicate materials has been proposed. Calcium silicate materials have properties that make them suitable for use in endodontics. Research with hybrid materials may lead to the development of a cement with more desirable characteristics. Clinical Relevance: Dentists should be aware of the chemistry of the calcium silicate group of materials that includes Mineral Trioxide Aggregate and several newer materials.

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Section: Modifications To Compositionmentioning

confidence: 99%

Calcium silicate materials in endodontics

Dutta¹,

Saunders

2014

Dent Update

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“…The most popular is calcium chloride [1,4,10,53,56,85], calcium nitrite/nitrate and calcium formate [85]. These chemical additions are also used in the industry to accelerate the setting of Portland cement.…”

Section: Manipulationmentioning

confidence: 99%

Composition and Setting Reaction

Camilleri

2014

Mineral Trioxide Aggregate in Dentistry

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“…Various accelerators have been added to shorten the setting time and overcome this drawback [13, 14]. Disodium hydrogen orthophosphate (Na 2 HPO 4 ) [15], calcium chloride (CaCl 2 ) [14], and KY jelly have been reported to significantly reduce the set ting time [13, 16]; however, previous studies also revealed that the accelerator additives can have adverse effects on the physicochemical properties of MTA [15, 17]. …”

Section: Introductionmentioning

confidence: 99%

Does Adding Various Accelerators to Mineral Trioxide Aggregate Have a Negatively Effect on Push-Out Bond Strength?

Ilker

Sarıyılmaz

Çakıcı³

2018

Med Princ Pract

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Objective: This study compares the effect of the white mineral trioxide aggregate (WMTA) accelerators, including disodium hydrogen orthophosphate (Na₂HPO₄; 2.5 wt%), calcium chloride (CaCl₂; 5 and 10 wt%), and KY jelly, on the push-out bond strength of WMTA. The null hypothesis was that the WMTA accelerators would not affect the push-out bond strength of WMTA. Materials and Methods: Slices (2-mm-thick) were obtained from 75 human mandibular molar distal roots. The slices were enlarged up to size 6 Gates-Glidden burs to obtain a 1.5-mm canal diameter. The slices were randomly divided into 4 experimental groups and a control group (n = 15 in each group). Freshly prepared WMTA mixture was placed into the root slices and stored at 37°C in a 100% humidified atmosphere for 60 days. The force required to dislodge the WMTA cement from the root slice was determined using a universal testing machine. The push-out bond strength was calculated. Results: Push- out bond strength of 5- and 10-wt% CaCl₂, and 2.5-wt% Na₂HPO₄ WMTA groups was significantly lower than in the KY-jelly and control groups (p < 0.05). The mean push-out bond strength of KY jelly was lower than in the control group but not statistically significant. Conclusion: The addition of KY jelly to WMTA did not have an adverse effect on the push-out bond strength of WMTA, in contrast to the other accelerators, including Na₂HPO₄ and CaCl₂, which reduced the push-out bond strength.

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Improvement of the Properties of Mineral Trioxide Aggregate by Mixing with Hydration Accelerators

Cited by 60 publications

References 31 publications

Calcium silicate materials in endodontics

Calcium silicate materials in endodontics

Composition and Setting Reaction

Does Adding Various Accelerators to Mineral Trioxide Aggregate Have a Negatively Effect on Push-Out Bond Strength?

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