So how can we prevent tooth crowding early, using lifestyle changes and orthodontics?

所以我们要如何靠改变生活方式和矫正牙齿来早期预防牙齿拥挤？

It's estimated that somewhere between 30 to 60% of people today experience some level of tooth crowding.

据估计，现今有 30% 到 60% 的人有某种程度的牙齿拥挤现象。

And some don't experience tooth crowding or crookedness and still get their wisdom teeth without a hitch.

也有些人没有牙齿拥挤或咬合不正的状况，仍然能长出智齿且毫无问题。

He says such culinary adaptations resulted in fundamental changes in craniofacial growth and development, resulting in reduced robustness, increased malocclusion and increased tooth crowding.

他指出，此类厨房工具的应用给人类颅面的生长发育带来了根本上的改变，这就导致了人类更加瘦弱，牙齿错位几率增加，牙腔变得拥挤。