Endo T, Oka K, Murakami H, Yoshida M, Kosuge N, Kameda A
Shigaku. 1989 Dec;77(4):1408-15.
As a means of studies of securing freeze-drying method by application of tray for prevention of white spots, decalcification and secondary caries of enamel, which may develop during and after orthodontic treatment, comparison and review were made on physico-chemical properties of fluoride gel to be used for gelatin gel method and freeze-drying gelatin gel method (control group gel and experimental group gel), and the following results were obtained: 1. Physical properties As the results of naked-eye observations, morphological observations through scanning electron microscope and measurements of gelly strength and viscosity, no distinct difference between control and experimental group gel was noted. 2. Chemical properties The qualitative analyses of fluoride ion with ion chromatogram and pH measurement were carried out, and consequently experimental group gel indicated similar values to control group gel. From the foregoing results, it was learned that no significant difference in their physico-chemical properties was clearly confirmed between control and experimental group gel, and it was suggested that similarly to control group gel, experimental group gel would be an effective gel substance as gel media for the formation process of fluorapatite or the reinforcement method of tooth enamel.
作为一种通过应用托盘来确保冷冻干燥方法以预防正畸治疗期间及之后可能出现的牙釉质白斑、脱钙和继发龋的研究手段，对用于明胶凝胶法和冷冻干燥明胶凝胶法（对照组凝胶和实验组凝胶）的氟凝胶的物理化学性质进行了比较和综述，得出以下结果：1. 物理性质 通过肉眼观察、扫描电子显微镜形态观察以及凝胶强度和粘度测量的结果表明，对照组凝胶和实验组凝胶之间未发现明显差异。2. 化学性质 用离子色谱法对氟离子进行了定性分析并测量了pH值，结果实验组凝胶显示出与对照组凝胶相似的值。根据上述结果可知，对照组凝胶和实验组凝胶在物理化学性质上未明确确认有显著差异，并且表明与对照组凝胶类似，实验组凝胶作为氟磷灰石形成过程的凝胶介质或牙釉质强化方法将是一种有效的凝胶物质。
