Robertello F J, Coffey J P, Lynde T A, King P
School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298-3159, USA.
J Prosthet Dent. 1999 Aug;82(2):172-6. doi: 10.1016/s0022-3913(99)70152-6.
There is considerable variation in generic formulation and in reported fluoride release from resin-modified glass ionomer luting cements.
This study compared fluoride release from 2 generically similar resin-modified glass ionomer luting cements (Vitremer and Advance) with release from 2 conventional glass ionomer luting cements (Ketac-Cem and Fuji I).
Ten specimen disks of each of the 4 luting cements were fabricated and immersed in deionized water in individual polystyrene jars. The jars were stored in a humidor at 37 degrees C between test periods. At the same time each day, for 28 days, fluoride release from each specimen disk was measured in parts per million by testing the storage water.
The 4 luting cements tested showed an initial high concentration of fluoride release during the first week, followed by a gradual decrease over the study period. Vitremer luting cement demonstrated the greatest mean cumulative fluoride release in parts per million over the study period (198), followed by Fuji I (140), Ketac-Cem (110), and Advance (99) luting cements.
Resin-modified glass ionomer luting cements showed fluoride release comparable to the conventional glass ionomer luting cements. Vitremer luting cement released more fluoride over the 28-day period than the other cements.
树脂改性玻璃离子水门汀的通用配方以及所报道的氟释放量存在相当大的差异。
本研究比较了两种通用型相似的树脂改性玻璃离子水门汀（Vitremer和Advance）与两种传统玻璃离子水门汀（Ketac-Cem和Fuji I）的氟释放情况。
制备了4种水门汀中每种的10个样本盘，并将其浸入单独的聚苯乙烯罐中的去离子水中。在测试期间，这些罐子保存在37摄氏度的保湿箱中。在每天的同一时间，持续28天，通过检测储存水以百万分之一为单位测量每个样本盘的氟释放量。
所测试的4种水门汀在第一周显示出初始高浓度的氟释放，随后在研究期间逐渐下降。在研究期间，Vitremer水门汀的平均累积氟释放量以百万分之一计最高（198），其次是Fuji I（140）、Ketac-Cem（110）和Advance（99）水门汀。
树脂改性玻璃离子水门汀的氟释放量与传统玻璃离子水门汀相当。在28天期间，Vitremer水门汀释放的氟比其他水门汀更多。
