혈액오염이 Tricalcium Silicate 재료의 압출강도와 표면형태에 미치는 영향
Effect of Blood Contamination on the Push-Out Bond Strength and Surface Morphology of Tricalcium Silicate Materials
소속 상세정보
박미선:Park Mi-Sun
김재환:Kim Jae-Hwan/최남기:Choi Nam-Ki/김선미:Kim Seon-Mi
KMID : 0358920160430010036
Abstract
이 연구의 목적은 혈액오염 시 Biodentin®, Theracal®, mineral trioxide aggregate(MTA)의 압출강도를 측정하고 표면형태를 관찰하는 것이었다.
Biodentin®, Theracal®, MTA 각각의 재료를 2개의 그룹으로 나누었다. 대조군은 phosphate buffered saline 용액 조건에서, 실험군은 fetal bovine serum 조건에서 4일간 37℃에서 보관하였다. 이후 압출강도를 측정하고 주사전자현미경을 이용하여 표면형태를 분석하였다.
Biodentin®, Theracal®은 모든 조건에서 MTA보다 유의하게 더 높은 압출강도를 보였고 혈액오염 시 모든 재료의 압출강도는 유의하게 감소하였다. 표면형태 관찰결과 혈액오염 후 모든 재료의 표면형태가 변화하였다.
혈액오염 조건에서 Biodentin®과 Theracal®은 MTA와 비교하여 더 높은 압출강도를 보였으므로 혈액오염 조건에 사용하기에 더 적절할 수 있다.
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.
키워드
혈액오염; Biodentine; Theracal; Mineral trioxide aggregate; 압출강도; 주사전자현미경
Blood contamination; Biodentine; Theracal; Mineral trioxide aggregate; Push-out bond strength; Scanning electron microscope
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