The Effect of Different Mixing Methods on the pH and Solubility of Mineral Trioxide Aggregate and Calcium-Enriched Mixture
The Effect of Different Mixing Methods on the pH and Solubility of Mineral Trioxide Aggregate and Calcium-Enriched Mixture
复制标题
不同混合方法对三氧化二矿物骨料和富钙混合物pH值和溶解度的影响
DOI：
10.22037/iej.v10i2.6235
复制
发表时间：
2015
影响因子：
--
通讯作者：
M. Bahari
中科院分区：
文献类型：
--
作者：
S. Shahi;Negin Ghasemi;Saeed Rahimi;H. Yavari;M. Samiei;M. Janani;M. Bahari
简介：本研究的目的是评估不同的混合技术对矿物三氧化物聚集体（MTA）和富钙混合物（CEM）的pH值和溶解度的影响。方法和材料：采用不同的混合技术（包括手动混合、汞齐化混合或超声混合）从每种生物材料制备5份样品，然后将其置于预先称重的塑料管中以测定其pH值。然后将每个试管在10 mL去离子蒸馏水中于37 ℃孵育1 h。在24 ℃下将电极置于每个烧瓶中的流体中，并记录pH值。在下一阶段，将来自每种混合技术/材料的6个样品分别置于含有50 mL蒸馏水的玻璃瓶中，在37ºC下放置1小时，并在37ºC下干燥1小时。测量并记录两次样品重量。每隔1、7和21天重复该程序。采用重复测量ANOVA（溶解度）和双因素ANOVA（pH值）分析数据，然后进行事后Tukey检验。结果：混合方法对材料的pH值无显著影响。（CEM组P=0.8，MTA组P=0.1）。所有试验组的溶解度均在可接受范围内（=3%）。然而，CEM在1天和21天间隔的溶解度存在显著差异（1天P=0.03，21天P=0.001）。不同的混合技术在三个时间点对MTA的溶解度有显著影响（1天、7天和21天的间隔分别为P=0.004、0.003和0.002）。结论：生物材料的pH值不受混合技术的影响，其溶解度在可接受的范围内。
Introduction: The aim of this study was to evaluate the effect of different mixing techniques on the pH and solubility of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM). Methods and Materials: Five samples were prepared from each biomaterial with different mixing techniques including hand-, amalgamator- or ultrasonic-mixing and were then placed in pre-weighted plastic tubes to determine their pH values. Each tube was then incubated in 10 mL deionized distilled water for 1 h at 37ºC. An electrode was placed in the fluid in each flask at 24ºC and the pH was recorded. In the next stage, six samples from each mixing technique/material were separately placed in glass bottles containing 50 mL of distilled water at 37ºC for 1 h and were let dry for 1 h at 37ºC. The samples’ weights were measured and recorded twice. The procedure was repeated at 1-, 7- and 21-day intervals. Data were analyzed with the repeated measures ANOVA (for solubility) and two-way ANOVA (for pH) and then the post-hoc Tukey’s test was done. Results: The pH of the materials was not significantly affected by mixing methods. (P=0.8 for CEM and P=0.1 for MTA). The solubility of all test groups was within the acceptable range (=3%). However, the solubility of CEM at 1- and 21-day intervals was significantly different (P=0.03 for 1 day and P=0.001 for 21 days). Different mixing techniques had significant effects on the solubility of MTA at the three time points (P=0.004, 0.003 and 0.002 for 1-, 7- and 21-day intervals, respectively). Conclusion: The pH of biomaterials was not influenced by the mixing technique and their solubility was within the acceptable range.
影响因子：
4.2
作者：
Fridland, M;Rosado, R
通讯作者：
Rosado, R