Physical properties and hydration behavior of a fast-setting bioceramic endodontic material.
Physical properties and hydration behavior of a fast-setting bioceramic endodontic material.
复制标题
快凝生物陶瓷牙髓材料的物理性能和水化行为
DOI：
10.1186/s12903-016-0184-1
复制
发表时间：
2016-02-20
期刊：
影响因子：
2.9
通讯作者：
Haapasalo M
中科院分区：
文献类型：
--
作者：
Guo YJ;Du TF;Li HB;Shen Y;Mobuchon C;Hieawy A;Wang ZJ;Yang Y;Ma J;Haapasalo M
背景为了研究快凝生物陶瓷iRoot FS快凝牙根修复材料（iRoot FS）和其他三种牙髓水泥的物理性能和水化行为。方法对iRoot FS、Endoseequence根部修复材料腻子（ERRM Putty）、灰色和白色三氧化二矿物骨料（G-MTA和W-MTA）以及中间修复材料（IRM）进行了评估。凝结时间使用 ANSI/ADA 标准测量。使用维氏压痕试验评估显微硬度。在第 7 天和第 28 天时研究了抗压强度和孔隙率。采用差示扫描量热法(DSC)进行水化测试。结果四种生物陶瓷水泥中Root FS的凝结时间最短(p< .001)。 iRoot FS、ERRM Putty 和 MTA 的显微硬度值在 28 天内以不同的速率增加。第一天时，ERRM Putty 的显微硬度是生物陶瓷水泥中最低的 (p< .001)，但在第 4、7 和 28 天时达到与 MTA 相同的水平。第 7 天和第 28 天时，iRoot FS 的显微硬度低于 W-MTA (p< .05)。 7 天后，材料的孔隙率没有变化 (p< .05)。所有生物陶瓷组在 28 天时的抗压强度值均显着高于 7 天时的抗压强度值 (p< .01)。在所评价的生物陶瓷水泥中，ERRM Putty 的抗压强度最高，孔隙率最低 (p< .05)，其次是 iRoot FS、W-MTA 和 G-MTA。 DSC 显示 iRoot FS 水合最快，引发强烈的放热反应。 ERRM Putty 在等温量热测试中没有表现出明显的放热峰。结论siRoot FS 比其他测试的生物陶瓷水泥具有更快的凝固时间和水化过程。 iRoot FS、G-MTA 和 W-MTA 的机械性能相对相似。
BackgroundTo investigate the physical properties and the hydration behaviour of the fast-setting bioceramic iRoot FS Fast Set Root Repair Material (iRoot FS) and three other endodontic cements.MethodsiRoot FS, Endosequence Root Repair Material Putty (ERRM Putty), gray and white mineral trioxide aggregate (G-MTA & W-MTA), and intermediate restorative material (IRM) were evaluated. The setting time was measured using ANSI/ADA standards. Microhardness was evaluated using the Vickers indentation test. Compressive strength and porosity were investigated at 7 and 28 days. Differential scanning calorimetry (DSC) was employed for the hydration test.ResultsiRoot FS had the shortest setting time of the four bioceramic cements (p< .001). The microhardness values of iRoot FS, ERRM Putty and MTA increased at different rates over the 28 days period. At day one, ERRM Putty had the lowest microhardness of the bioceramic cements (p< .001), but reached the same level as MTA at 4, 7 and 28 days. The microhardness of iRoot FS was lower than that of W-MTA at 7 and 28 days (p< .05). The porosity of the materials did not change after 7 days (p< .05). The compressive strength values at 28 days were significantly greater for all bioceramic groups compared to those at 7 days (p< .01). ERRM Putty had the highest compressive strength and the lowest porosity of the evaluated bioceramic cements (p< .05), followed by iRoot FS, W-MTA, and G-MTA, respectively. DSC showed that iRoot FS hydrated fastest, inducing an intense exothermic reaction. The ERRM Putty did not demonstrate a clear exothermic peak during the isothermal calorimetry test.ConclusionsiRoot FS had a faster setting time and hydrating process than the other bioceramic cements tested. The mechanical properties of iRoot FS, G-MTA and W-MTA were relatively similar.