结论氟化泡沫对3 ~6岁组儿童的龋病预防是有效的。
Conclusion the prevention of dental caries with fluorinated bubbles is effective to the children aging from 3 to 6.
方法：在酸蚀前后分别用氟化泡沫对牙釉质进行氟化处理。
Methods: To treat teeth with fluoride treatments before or after etching.
结论1.23%的氟化泡沫对预防固定矫治过程中发生的釉质脱矿效果显著。
Conclusion the effects of 1.23% fluoride foam on the prevention of enamel demineralization during orthodontic treatment were remarkable.
方法将武汉市两所小学612名6～7岁儿童分为氟化泡沫组、氟化凝胶组和对照组，每6个月分别使用一次氟化泡沫和氟化凝胶，为期2年。
Methods 612 children aged 6~7-year-old from 2 schools were assigned to a fluoride foam group, a fluoride gel and a control group.
电子设备制造商使用氯氟化碳清洗金属，并且一般都利用氯氟化碳作为制冷剂和制造泡沫绝缘材料。
Electronic equipment manufacturers use CFC's to clean metal, and CFC's are commonly used as refrigerants and to make foam insulation.
低浓度氟化物溶液和氟泡沫处理后釉质的表面硬度无明显改变。
The microhardness values were not changed after treatment with other agents.
低浓度氟化物溶液和氟泡沫处理后釉质的表面硬度无明显改变。
The microhardness values were not changed after treatment with other agents.
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