CAJ | 학술논문

背景:无机三氧化复合物自1998年在美国问世以来就表现出了较其他牙髓科材料明显的优势,但目前国内无机三氧化复合物全部依赖于进口,尚无相关替代产品问世,因此国内自行研制无机三氧化复合物很有必要.目的:对新材料国产无机三氧化聚合物无机三氧化复合物进行初步的性能研究.方法:应用扫描电镜,X射线衍射,X射线荧光对通过球磨混合与长时烧结复合方式法制备得到的的材料国产无机三氧化复合物进行表征.结果与结论:扫描电镜观察国产无机三氧化复合物粉体呈现多间隙,凹凸不平,稍大的颗粒分散于小颗粒之间的形貌.由X射线衍射实验图可知3CaO·SiO_2、Bi_2O_3和2CaO·SiO_2 3种物相为最主要成分.X射线荧光实验得到国产无机三氧化复合物主要成分为:氧化铋18.169 52%;硅酸三钙60.857 32%;硅酸二钙19.703 31%;铝酸三钙0.756 56%;铁铝酸四钙1.764 1%.实验证实球磨混合与长时烧结的复合方式法制备出的国产无机三氧化复合物其成分与进口的无机三氧化复合物材料相近.
배경:무궤삼양화복합물자1998년재미국문세이래취표현출료교기타아수과재료명현적우세,단목전국내무궤삼양화복합물전부의뢰우진구,상무상관체대산품문세,인차국내자행연제무궤삼양화복합물흔유필요.목적:대신재료국산무궤삼양화취합물무궤삼양화복합물진행초보적성능연구.방법:응용소묘전경,X사선연사,X사선형광대통과구마혼합여장시소결복합방식법제비득도적적재료국산무궤삼양화복합물진행표정.결과여결론:소묘전경관찰국산무궤삼양화복합물분체정현다간극,요철불평,초대적과립분산우소과립지간적형모.유X사선연사실험도가지3CaO·SiO_2、Bi_2O_3화2CaO·SiO_2 3충물상위최주요성분.X사선형광실험득도국산무궤삼양화복합물주요성분위:양화필18.169 52%;규산삼개60.857 32%;규산이개19.703 31%;려산삼개0.756 56%;철려산사개1.764 1%.실험증실구마혼합여장시소결적복합방식법제비출적국산무궤삼양화복합물기성분여진구적무궤삼양화복합물재료상근.
BACKGROUND: Since its inception in 1998 in the United States, mineral trioxide aggregate (MTA) showed obvious superiority compared to other materials, but the current domestic MTA entirely dependent on imports. There is no relevant alternative products come out, therefore, domestic MTA is necessary.OBJECTIVE: To research the performance of domestic MTA.METHODS: The domestic MTA was prepared using ball-milling mixing and sintering method and its performance was studied by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF). RESULTS AND CONCLUSION:SEM showed domestic MTA had many gaps, uneven shape, and large granules dispersed among small granules. XRD demonstrated that 3CaO·SiO_2, Bi_2O_3 and 2CaOSiO_2 were main components. XRF revealed that main components of domestic MTA were bismuth oxide 18.169 52%, tricalcium silicate 60.857 32%, dicalcium silicate 19.703 31%, tricalcium aluminate 0.756 56% and 4CaO·Al_2O_3·Fe_2O_3 1.764 1%. Results showed that the ingredients of domestic MTA using ball-milling mixing and sintering method are similar to the imported materials.