Filler particle leachability of experimental dental composites.
Filler particle leachability of experimental dental composites.
复制标题
实验牙科复合材料的填料颗粒可浸出性。
DOI：
10.1034/j.1600-0722.2000.00919.x
复制
发表时间：
2000
影响因子：
1.9
通讯作者：
Garcea,I
中科院分区：
文献类型：
--
作者：
Söderholm,KJ;Yang,MC;Garcea,I
我们研究了基质选择、填料组成和填料硅烷化对填料在蒸馏水或人工唾液中储存后可溶解性的影响。我们评估了2种基质系统，2种填料系统和2种硅烷处理程序，组合成8种不同的牙科复合材料。共制备128个批次，每个批次制备2个样本。在每批的这2个样本中，一个储存在蒸馏水中，另一个储存在人工唾液中，均在37°C下。在3年期间，我们每隔30天将样本转移到装有新鲜蒸馏水或新混合人工唾液的新小瓶中，并分析样本储存溶液中的Si、Ba和Al浓度。分析表明，储存溶液，填料组合物，并在储存溶液中的总时间有很大的影响，可溶解性。三种元素的月平均渗漏量与时间呈线性关系，人工唾液中的渗漏量较高。含Ba填料在人工唾液中比在蒸馏水中更快地浸出Si，并且大约是石英填料的两倍。存储效果接近一个数量级，而填充效果大致为2倍。填料浸出随时间呈线性。
We studied the effect of matrix selection, filler composition, and filler silanization on filler leachability after storage in distilled water or artificial saliva. We evaluated 2 matrix systems, 2 filler systems and 2 silane treatment procedures, combined into 8 different dental composite materials. A total of 128 batches were made, and 2 specimens per batch were prepared. Of these 2 specimens per batch, one was stored in distilled water and the other in artificial saliva, both at 37°C. We transferred the specimens each 30th day during a 3‐yr period to new vials containing either freshly distilled water or newly mixed artificial saliva and analyzed the solutions the specimens had been stored in regarding Si, Ba and Al concentrations. The analyses revealed that storage solution, filler composition, and total time in the storage solution had strong effects on leachability. The average monthly leakage of the three elements was linear with time and higher in the artificial saliva. The Ba‐containing filler leached Si faster in artificial saliva than in distilled water, and roughly twice as much as the quartz filler. The storage effect approached an order of magnitude, while the filler effect was roughly a factor of two. Filler leaching was linear over time.