Teeth are an essential part of our body, helping us not only to chew our food but also to communicate. And a radiant smile with healthy and neat teeth is one of the most beautiful accessories for the face.
Teeth are an essential part of our body, helping us not only to chew our food but also to communicate. And a radiant smile with healthy and neat teeth is one of the most beautiful accessories for the face. Normally, each person has two sets of teeth in their lifetime: milk teeth (baby teeth) and permanent teeth (adult teeth). In this article, we will look at both teeth, their types and their functions.
Teeth are made up of several different layers: enamel, dentin, pulp and cementum. Enamel, which is the hardest material in the human body, covers the outside of the tooth. It is mainly composed of a rock-hard mineral called calcium phosphate. This is followed by a second layer, dentin, which is slightly softer than enamel. The pulp lies deepest inside the tooth. This is the living part, made up of nerves and blood cells. Another part of the tooth is called the cementum. This is a layer of connective tissue that holds the roots of the tooth firmly to the gums and jaw.
There are four types of human teeth: incisors, canines, molars and molars.
Children have a total of 20 milk teeth in their mouths. The first teeth start to erupt around 6 months. Usually, all the milk teeth are erupted by the age of 3. The first baby teeth that start to fall out are the lower front teeth. Usually, young children lose all their milk teeth by the age of 14.
While the milk teeth slowly fall out, they are replaced by 28 permanent teeth. The first permanent teeth start to erupt around the age of 6. At the end of adolescence, the mental teeth usually start to erupt. This eventually leads to a total of 32 permanent teeth in the mouth.
Timing of the emergence and eruption of milk teeth by tooth type:
| Tooth type | Germination age | Age of dropout |
| Upper jaw | ||
| Central moth | 8–12 months | 6– 7 years |
| Side moth | 9–13 months | 7–8 years |
| Fangs | 16–22 months | 10–12 years |
| First stunted | 13–19 months | 9–11 years |
| Second sternum | 25–33 months | 10–12 years |
| Lower jaw | ||
| Second sternum | 23–31 months | 10–12 years |
| First stunted | 14–18 months | 9–11 years |
| Fangs | 17–23 months | 9–12 years |
| Side moth | 10–16 months | 7–8 years |
| Central moth | 6–10 months | 6–7 years |
Timing of permanent tooth eruption by tooth type:
| Tooth type | Germination age |
| Upper jaw | |
| Central moth | 7–8 years |
| Side moth | 8–9 years |
| Fangs | 11–12 years |
| The first hoe | 10–11 years |
| The second hoe | 10–12 years |
| First stunted | 6–7 years |
| Second sternum | 12–13 years |
| Third molar (mental) | 17–21 years |
| Lower jaw | |
| Third molar (mental) | 17–21 years |
| Second sternum | 11–13 years |
| First stunted | 6–7 years |
| The second hoe | 11–12 years |
| The first hoe | 10–12 years |
| Fangs | 9–10 years |
| Side moth | 7–8 years |
| Central moth | 6–7 years |
Each child’s age of eruption and eruption may vary, so parents should not be too worried if their child’s teeth do not exactly match the above schedule. A dentist should be contacted if the delay is longer than 1 year. The dentist will take X-rays to show whether the permanent teeth are erupting and developing properly.
Taking good care of your teeth and maintaining good oral hygiene can help you keep your teeth strong and healthy throughout your life.
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