I chipped the enamel on my front tooth when I fell over.

我跌倒时门牙的珐琅质碰碎了。

The additional enamel (much harder than the dentin in tooth interiors) makes hypsodont teeth more wear-resistant than low-crowned teeth are.

这些额外的珐琅质（部的牙质硬很多）使高冠齿低冠齿耐磨得多。