Dasgupta Sayan, Saraswathi M Vidya, Somayaji Krishnaraj, Pentapati Kalyana Chakravarthy, Shetty Prajwal
Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Department of Public Health Dentistry, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India.
J Conserv Dent. 2018 Nov-Dec;21(6):622-626. doi: 10.4103/JCD.JCD_338_18.
The aim of this study was to evaluate and compare the fluoride ion release and uptake of glass ionomer cement GP IX Extra (GE), EQUIA Forte Fil (EF), Beautifil Bulk (BB), Dyract XP (DXP), Tetric N-Ceram (TNC) .
The restorative materials were divided into five groups ( = 12), namely G1 - GE, G2 - EF, G3 - BB, G4 - DXP, G5 - TNC. Fluoride release was checked using fluoride ion-selective electrode (Orion 9609BNWP, Ionplus Sure-Flow Fluoride, Thermo Scientific, USA) at time intervals of 1 day and thereafter at 3, 7, 14, 21, and 28 days. Following this, fluoride recharge was done with 1.23% acidulated phosphate fluoride gel (12,300 ppm, Pascal International Inc., 2929 Northup Way, Bellevue, USA) after 28 days and each sample was re-checked for fluoride release at the same time intervals.
One-way ANOVA with Games-Howell test for intergroup and repeated measures ANOVA with Bonferroni test for intragroup analysis. < 0.05 was considered statistically significant.
On intergroup analysis, Group 2 showed high values of fluoride release and recharge at all-time intervals which were significantly higher ( < 0.001) than Groups 1, 3, 4 and 5. Intragroup analysis showed significantly higher ( < 0.001) fluoride release and recharge at the end of day 1 which decreased progressively with time for all the tested materials.
EF showed the highest fluoride release and recharge potential across all time intervals compared to other tested restorative materials and the greatest fluoride release was seen on day 1.
本研究旨在评估并比较玻璃离子水门汀GP IX Extra（GE）、EQUIA Forte Fil（EF）、Beautifil Bulk（BB）、Dyract XP（DXP）、Tetric N-Ceram（TNC）的氟离子释放和吸收情况。
将修复材料分为五组（每组n = 12），即G1 - GE、G2 - EF、G3 - BB、G4 - DXP、G5 - TNC。使用氟离子选择性电极（美国赛默飞世尔科技公司的Orion 9609BNWP，Ionplus Sure-Flow Fluoride）在1天时检查氟离子释放情况，此后在3、7、14、21和28天时进行检查。在此之后，28天后用1.23%的酸化磷酸氟凝胶（12300 ppm，美国华盛顿州贝尔维尤市Northup Way 2929号的Pascal International Inc.公司）进行氟再充注，并在相同时间间隔重新检查每个样品的氟离子释放情况。
组间分析采用单因素方差分析和Games-Howell检验，组内分析采用重复测量方差分析和Bonferroni检验。P < 0.05被认为具有统计学意义。
组间分析显示，第2组在所有时间间隔的氟离子释放和再充注值均较高，显著高于（P < 0.001）第1、3、4和5组。组内分析显示，所有测试材料在第1天结束时氟离子释放和再充注显著较高（P < 0.001），并随时间逐渐降低。
与其他测试的修复材料相比，EF在所有时间间隔内均显示出最高的氟离子释放和再充注潜力，且在第1天氟离子释放量最大。
