可见光固化牙科复合树脂中无机填料的表征

Characterization of inorganic fillers in visible-light-cured dental composite resins.

作者信息

Khan A M, Suzuki H, Nomura Y, Taira M, Wakasa K, Shintani H, Yamaki M

机构信息

Department of Operative Dentistry, Hiroshima University School of Dentistry, Japan.

出版信息

J Oral Rehabil. 1992 Jul;19(4):361-70. doi: 10.1111/j.1365-2842.1992.tb01578.x.

DOI:10.1111/j.1365-2842.1992.tb01578.x

PMID:1331385

Abstract

Inorganic fillers in seven visible-light (VL)-cured dental composite resins were examined for their size, composition, phase and content, employing the following analytical instruments. SEM observations indicated that five samples could be classified into the hybrid type while the remaining two belonged to micro-filled and sub-micron types. EDX analyses revealed that five samples contained BaO while others lacked BaO. XRD analyses showed that three were in vitreous phase, two were in the crystalline phase and two were mixtures of both. DTG thermal analyses indicated that the hybrid type composites had the higher inorganic filler content (wt%) than the composites of two other types. In conclusion, wide varieties exist in the inorganic fillers in VL-cured dental composite resins currently utilized.

摘要

使用以下分析仪器，对七种可见光（VL）固化牙科复合树脂中的无机填料的尺寸、组成、相和含量进行了检测。扫描电子显微镜（SEM）观察表明，五个样品可归类为混合型，其余两个属于微填料型和亚微米型。能量色散X射线光谱（EDX）分析显示，五个样品含有氧化钡（BaO），而其他样品不含BaO。X射线衍射（XRD）分析表明，三个样品处于玻璃相，两个处于结晶相，两个是两者的混合物。微商热重（DTG）热分析表明，混合型复合材料的无机填料含量（重量百分比）高于其他两种类型的复合材料。总之，目前使用的VL固化牙科复合树脂中的无机填料种类繁多。