What is the external and internal structure of the tooth?

Each tooth has a crown, a neck and a root. The crown is located above the gum and is covered with enamel – the hardest substance in our body. The roots attach the tooth to the jaw bone. The root of the tooth covers a layer of cement – a special substance necessary to hold the tooth in its hole. Depending on the variety, a tooth can have from one to three roots. The bulk of the tooth consists of a solid substance – dentin. In the dentin thickness of each tooth there is a cavity filled with soft contents – pulp. Through a narrow hole in the root of the tooth, nerves and blood vessels pass into the pulp. The gum forms a protection around the neck of the tooth.

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