A different cocktail pushed the stem cells to become odontoblasts instead.

而另一物则促使干胞分化牙胞。

Some become odontoblasts — these cells make dentin, the tough, fibrous core of the tooth.

一些变牙质胞——这些胞形牙质，坚硬的纤维牙质，是牙齿的核心部分。

They also assessed another type of cell called odontoblasts.

他们还评估了另一被称牙胞的胞。

As they form teeth, odontoblasts move inward, while ameloblasts move out and slough off when they hit the surface.

在形牙齿时，牙本质胞向牙内部扩散，胞则向牙的外部生长，并在抵达牙齿表面时脱落。

This amazing structure is created by two types of cells: ameloblasts that secrete enamel and odontoblasts that secrete dentin.

分泌牙的胞以及分泌牙本质的牙本质胞。

Odontoblasts use a more complex process, but unlike ameloblasts, they stick around, continuing to secrete dentin throughout your life.

牙本质胞则需要更复杂的过程，但与胞不同，它们不会消失，会在我们有生之年继续分泌牙本质。

The outer wall of the pulp, contains odontoblasts which are cells that secrete a bonelike substance called dentin, which is filled with protein and minerals.

牙髓外层有牙质胞，它们可以分泌一叫牙本质的骨样组织，其中充满了蛋白质和矿物质。

The odontoblasts have long processes, or arms, that lay within tiny tubules in the dentin - like an octopus sticking it's arms through a block of cement.

牙质胞有长长的突起，或者说长臂，伸入牙本质中的小管，就像章鱼的触角伸进水泥块被困住一样。

Having both cell types seemed to be crucial: when odontoblasts were present alongside ameloblasts, genes coding for enamel proteins were more strongly expressed than with ameloblasts alone.

拥有这两胞类型似乎是至关重要的: 当牙质胞和胞同时存在时，编码牙质蛋白的基因比单独存在胞时表达得更强烈。