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Dissolution of a mineral trioxide aggregate sealer in endodontic solvents compared to conventional sealers

Overview of attention for article published in Brazilian Oral Research, January 2016
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Title
Dissolution of a mineral trioxide aggregate sealer in endodontic solvents compared to conventional sealers
Published in
Brazilian Oral Research, January 2016
DOI 10.1590/1807-3107bor-2016.vol30.0016
Pubmed ID
Authors

ALZRAIKAT, Hanan, TAHA, Nessrin Ahmad, HASSOUNEH, Layla, ALZRAIKAT, Hanan, TAHA, Nessrin Ahmad, HASSOUNEH, Layla

Abstract

The aim of this study is to evaluate the solubility of a Mineral Trioxide Aggregate sealer (MTA-Fillapex) compared with five other sealers, calcium hydroxide (Sealapex), resin (Realseal), zinc oxide-eugenol (Tubli-Seal), and two epoxy resins (AH-26 and AH-Plus), in chloroform and eucalyptoil in static and ultrasonic environments. Samples of each sealer were prepared (n = 180) and then divided into 12 groups that were immersed in solvents for 5 and 10 min in static and ultrasonic environments. The mean weight loss was determined, and the values were compared using Student's t-test, One-way ANOVA, and Tukey's HSD post-hoc test (p < 0.05). In chloroform, MTA-Fillapex, AH-26, and Sealapex displayed moderate solubility with no significant difference in dissolution (p = 0.125); however, their dissolution was significantly lower than that of AH-Plus (p < 0.001), which was almost fully dissolved after 10 minutes. Realseal was significantly less soluble than all sealers (p < 0.001). In eucalyptoil, MTA-Fillapex showed low solubility, as all of the sealers did, but Tubli-Seal was significantly more soluble than other sealers (p < 0.001). Using ultrasonic activation resulted in a significantly higher dissolution rate in chloroform for all sealers except MTA-Fillapex after 10 min (p = 0.226). In eucalyptoil, ultrasonic activation significantly increased the dissolution rate of all sealers except MTA-Fillapex after 5 and 10 min, Sealapex at 10 min, and AH-Plus at 5 min (p > 0.05). In conclusion, MTA-Fillapex was not sufficiently dissolved in either solvent. Ultrasonic activation had limited effectiveness on MTA-Fillapex dissolution, whereas it significantly increased the efficiency of solvents in dissolving a number of endodontic sealers.

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Geographical breakdown

Country Count As %
Unknown 27 100%

Demographic breakdown

Readers by professional status Count As %
Student > Postgraduate 5 19%
Student > Bachelor 3 11%
Student > Ph. D. Student 3 11%
Researcher 2 7%
Student > Master 2 7%
Other 5 19%
Unknown 7 26%
Readers by discipline Count As %
Medicine and Dentistry 13 48%
Psychology 1 4%
Computer Science 1 4%
Unspecified 1 4%
Veterinary Science and Veterinary Medicine 1 4%
Other 2 7%
Unknown 8 30%