The effect of various mixing techniques on the surface microhardness of mineral trioxide aggregate

Nekoofar MH, Aseeley Z, Dummer PMH. The effect of various mixing techniques on the surface microhardness of mineral trioxide aggregate. International Endodontic Journal, 43, 312–320, 2010. Aim  To evaluate the influence of various mixing procedures including ultrasonic vibration, trituration of cust...

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Bibliographic Details
Published in:International endodontic journal 2010-04, Vol.43 (4), p.312-320
Main Authors: Nekoofar, M. H., Aseeley, Z., Dummer, P. M. H.
Format: Article
Language:English
Subjects:
Aluminum Compounds - chemical synthesis
Aluminum Compounds - chemistry
Calcium Compounds - chemical synthesis
Calcium Compounds - chemistry
condensation
Dental Stress Analysis
Dentistry
Drug Combinations
Drug Compounding - methods
Hardness
Materials Testing
mineral trioxide aggregate
mixing technique
Oxides - chemical synthesis
Oxides - chemistry
Pressure
Root Canal Filling Materials - chemical synthesis
Root Canal Filling Materials - chemistry
Silicates - chemical synthesis
Silicates - chemistry
Surface Properties
trituration
ultrasonic
Ultrasonics
Vibration
Vickers surface microhardness
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Summary:Nekoofar MH, Aseeley Z, Dummer PMH. The effect of various mixing techniques on the surface microhardness of mineral trioxide aggregate. International Endodontic Journal, 43, 312–320, 2010. Aim  To evaluate the influence of various mixing procedures including ultrasonic vibration, trituration of customized encapsulated mineral trioxide aggregate (MTA) and condensation on the Vickers surface microhardness of MTA. Methodology  ProRoot® MTA Original, ProRoot® MTA (white), MTA‐Angelus® (grey) and MTA White Angelus® (white) were prepared using several mixing techniques including ultrasonic vibration, trituration of customized encapsulated MTA and conventional condensation. Twelve experimental groups (four materials: three techniques) were evaluated, each with 35 samples. All samples were incubated after preparation and subjected to Vickers surface microhardness testing after 4 and 28 days. Data was were subjected to a two‐way anova. Result  At 28 days, the surface microhardness value was significantly greater for all experimental groups compared to 4 days after mixing (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2010.01683.x