Objectives: To evaluate the possibility of using Calcium Silicate-based Cement (CSC) as a root canal medicament by retarding or impeding the setting reaction of the cement after mixing with different vehicles.
Methods: Three types of CSC (white Portland cement, white ProRoot MTA, and Biodentine) were used in this study. CSCs were mixed with 7 different vehicles/solutions (n=3) with ration of (2g powder:1g solution) before packing into 10mm x 2mm cylindrical moulds to assess the setting time. Vehicles tested in this study were: chlorhixeden gel 2%, fluoride gel, eugenol, local anesthesia with and without epinephrine, sodium hypochlorite 5%, Phosphate-buffered saline and calcium chloride. The setting time were assessed and measured by Gilmore needle (GN) indentation according to ISO 6876:2002 and specimens were incubated at 37°C/100% humidity. The setting time were recorded at 24h,2,3,4,5,6, 7, 14, 28, 56, and 84 day.
Results: Setting times after 24h determined by GN are shown in the table. All CSCs formulations were set after 24h with the exception of CSCs that mixed with chlorhixeden gel 2% were not set until 84 days.
Conclusion: The addition of chlorhixeden gel 2% to CSCs retarding or inhibitingits the setting reaction over a period of 84 days. This formulation has the potential to be used as a root canal medicament. Further researches on this formulation is needed.
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Chlorhixeden Gel 2%,
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Fluoride gel
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Eugenol
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Local Anesthesia
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Sodium Hypochlorite 5%
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Phosphate-Buffered Saline
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CalciumChloride
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24h
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84 Day
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24h
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24h
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24h
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24h
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24h
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24h
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White Portland Cement
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Not Set
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Not Set
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Set
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Set
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Set
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Set
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Set
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Set
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White ProRoot MTA
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Not Set
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Not Set
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Set
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Set
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Set
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Set
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Set
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Set
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Biodentine
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Not Set
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Not Set
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Set
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Set
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Set
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Set
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Set
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Set
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