el-Badrawy W A, McComb D, Wood R E
Department of Restorative Dentistry, University of Toronto, Ontario, Canada.
Dent Mater. 1993 Jan;9(1):63-7. doi: 10.1016/0109-5641(93)90108-3.
The effect of home-use topical fluorides on the surface integrity of two glass ionomers and a composite was studied using SEM. Class V cavities prepared in extracted teeth were restored with two commercial glass ionomers and a composite. Teeth were randomly divided into groups and each group treated for 24 h with one of the following fluoride gels: acidulated phosphate fluoride (pH5), stannous fluoride (pH4.5), sodium fluoride (pH7), and a non-proprietary sodium fluoride (pH5.8). Surface degradation of the restorations was studied using SEM, rated according to specific criteria, and statistically analyzed by the Wilcoxon test (Rank Sums). It was found that the APF and the non-proprietary gel had a significant effect on both Gl matrix and particles and on the composite particles (p < 0.01). The neutral sodium fluoride had no significant effect on the materials (p > 0.01).
使用扫描电子显微镜（SEM）研究了家用局部用氟化物对两种玻璃离子体和一种复合材料表面完整性的影响。在拔除的牙齿上制备V类洞，并用两种市售玻璃离子体和一种复合材料进行修复。将牙齿随机分组，每组用以下一种氟化物凝胶处理24小时：酸性磷酸氟（pH5）、氟化亚锡（pH4.5）、氟化钠（pH7）和一种非专利氟化钠（pH5.8）。使用扫描电子显微镜研究修复体的表面降解情况，根据特定标准进行评级，并通过威尔科克森检验（秩和检验）进行统计分析。结果发现，酸性磷酸氟和非专利凝胶对玻璃离子体基质和颗粒以及复合材料颗粒均有显著影响（p < 0.01）。中性氟化钠对这些材料没有显著影响（p > 0.01）。
