As dental plaque grows thicker, the amount of oxygen near the enamel surface begins to fall.

当牙菌斑逐渐堆积变厚，牙釉质表面的氧气含量就会开始下降。

The research team identified milk protein within the dental plaque of teeth found at three Neolithic sites in England.

研究小组在英格兰的三个新石器时代遗址发现的牙齿的牙菌斑上发现了牛奶蛋白。

In addition, brushing and flossing are useful because they physically remove dental plaque and deliver fluoride to the teeth to help with remineralization.

此外，刷牙和使用牙线很有用，因为它们可以通过物理方法去除牙菌斑，在牙齿表面涂氟化物可以帮助牙齿再矿化。

So typically, dental plaque can form on the surface of teeth, b ut if the pH of the local environment around the tooth surface remains above about 5.5, enamel will not demineralize.

一般情况下，牙菌斑形成于牙齿表面，但当牙表面局部环境的pH值持续高于5.5时，牙釉质将不能脱矿化。

Glucans allow the bacteria to attach firmly to the surface of the tooth, and form dental plaque, which is a sticky collection of bacteria, proteins from saliva, and dead cells from the lining of the mouth.

葡聚糖使得细菌可以牢固地结合在牙齿表面，形成牙菌斑；牙菌斑是一种由细菌、蛋白质、唾液和口腔内凋亡的细菌一起组成的一种黏糊糊的混合物。

Bacteria naturally tend to group together and stick to surfaces, and this creates an adhesive substance called " biofilm" , we see it every morning when brushing our teeth and getting rid of dental plaque, for example.

细菌自然倾向于聚集在一起并粘附在表面，这会产生一种称为“生物膜” 的粘附物质，例如，我们每天早上刷牙和去除牙菌斑时都会看到它。