News

Why do we have two teethings?

Have you ever wondered why we have two dentitons? That is, why do not we keep the first dentition (baby teethh) forever? Or why don´t we have three dentitons?Have you ever wondered why we have two dentitons? That is, why do not we keep the first dentition (baby teethh) forever? Or why don´t we have three dentitons? This third could be very useful when we have problems with the pieces of the second one.

 

Teeth are structures formed by two parts, crown and root. The crown is the visible part inside the mouth and its structure consists of enamel (the outer part), dentine and pulp, commonly called nerve. The root is in the bone of the jaws and it is formed by cement (instead of enamel), dentine, and pulp.


All anatomical structures of the body develop during the growth period. This is influenced by genetic factors primarily.

Once formed, teeth don’t grow. Its size is genetically predetermined. When the first teeth appear, they do not increase in size, only the root is developed until it is perfectly formed. Once in place, the tooth size is always the same, normally distributed in the available space in the jawbone, which grows until the individual is fully developed. The jaws of a child are small at the beginning and have little space to accommodate, so these teeth come out so slowly. When the eruption of teeth is complete, there are only twenty and they are smaller than those of the second dentition which are thirty-two.

 

As the jaws and the rest of the body continue growing, teeth would be a bit ridiculous in the already developed jaws. That's when we start to change the dentiton progressively until we get the final one, which are more and bigger.

* A publication of Dr. Jose Arias Pardiñas, dentist doctor expert in dental implants, periodontics and prosthodontics.

Share it

Dr. Simón Pardiñas revolutionizes dental education using AI

Dr. Pardiñas will generate dental education videos in multiple languages thanks to a digital avatar created by Artificial Intelligence

Read more

All about tooth extraction

The process of removing a tooth carried out by a dental professional is known as exodontia This is everything you need to know about tooth extraction.

Read more

Dental treatment price - Is it expensive to go to the dentist?

It is very common for us to be asked about the price of dental treatments through social media. This is our policy.

Read more
Follow us

In our YouTube channel, world's largest dental channel, you will find numerous 3D videos with detailed explanations of more than 80 different treatments and subtitled in 15 different languages, information about procedures and dental curiosities.

Logo Dentalk

Project of Clínica Médico Dental Pardiñas where we answer FAQs about oral health matters