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KMID : 0358920160430010036
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Journal of the Korean Academy of Pedodontics
2016 Volume.43 No. 1 p.36 ~ p.43
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Effect of Blood Contamination on the Push-Out Bond Strength and Surface Morphology of Tricalcium Silicate Materials
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박미선:Park Mi-Sun
김재환:Kim Jae-Hwan/최남기:Choi Nam-Ki/김선미:Kim Seon-Mi
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Abstract
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The aim of this study was to evaluate the effect of blood contamination on the push-out bond strength and surface morphology of tricalcium silicate materials; Biodentin®, Theracal® and mineral trioxide aggregate.
The standardized lumens of root slices prepared from extracted single-root human teeth were filled with Biodentin®, Theracal® and mineral trioxide aggregate by manufacturer’s instruction. The specimens were randomly divided into 2 groups (n = 20) for each material and then incubated for 4 days at 37℃; control group (phosphate buffered saline solution) and experimental group (fetal bovine serum). The push-out bond strengths were then measured by a universal testing machine and the surface morphology of each experimental group was analyzed by scanning electron microscope.
Biodentin® and Theracal® showed higher push-out bond strength compared with mineral trioxide aggregate after exposure to fetal bovine serum. A substantial change in the surface morphology of each material was observed after exposure to fetal bovine serum.
In conclusion, the push-out bond strengths of Theracal® and Theracal® were higher than mineral trioxide aggregate when exposed to blood contamination. Therefore, it is supposed that the use of Theracal® and Theracal® is appropriate in the presence of blood.
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KEYWORD
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Blood contamination, Biodentine, Theracal, Mineral trioxide aggregate, Push-out bond strength, Scanning electron microscope
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