The enamel surface microhardness was measured by a Leitzs microhardness tester.
采用维氏显微硬度仪测定经饮料浸泡后牙釉质表面显微硬度的变化。
Objective This in vitro study quantitatively assessed the effect of frequency and time span of immersion of human teeth in acidic soft drinks on enamel surface microhardness.
目的本实验用显微硬度测量法，定量研究和评估人离体牙釉质在酸性饮料中的硬度变化，比较牙釉质在饮料中浸泡时间及浸泡频率对釉质表面硬度的影响。
Objective To investigate the influence of fluoride foam of different concentration on microhardness of demineralized enamel surface.
目的观察不同浓度氟泡沫对脱矿牙釉质表面显微硬度值的影响。
Objective To investigate the influence of fluoride foam of different concentration on microhardness of demineralized enamel surface.
目的观察不同浓度氟泡沫对脱矿牙釉质表面显微硬度值的影响。
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