Dental health depends on our eating habits and oral care. However, our teeth enable us to speak, chew and smile. The arrangement of your teeth also gives your face its shape and form.
The first tooth in your mouth occurs around the age of 6 months. The first tooth in your mouth is known as the primary tooth or baby tooth and fall out at various times throughout childhood. However, all the 32 permanent teeth have usually erupted by the age of 21. Here in this article, we are going to discuss the whole tooth eruption chart.
What do you mean by tooth eruption?
Tooth eruption is a process of tooth development in our mouth. A study shows that periodontal ligament plays a vital role in tooth eruption. However, the first human teeth erupt into the mouth from around six months.
At that time there is a combination of primary and permanent teeth which lasts until the last primary tooth is lost. Then the permanent teeth emerge into the mouth. Further, we are going to show you the whole tooth eruption chart.
Primary dentition stage
Keep in mind that eruption time varies from child to child. Here we are going to show you when primary teeth erupt and fall out.
Central incisors: Two central incisors on the upper side emerge around 8 to 12 months and the other two on the lower side erupts about 6 to 10 months. However, all four central incisors fall out 6 to 7 years. We use these teeth for chopping food.
Lateral incisors: Two lateral incisors on the upper side erupt around 9 to 13 months, and two on the lower side emerge about 10 to 16 months. However, all four lateral incisors fall out around 7 to 8 years.
Canines: Two Canines erupt around 16 to 22 months, and two on the lower side emerge about 17 to 23 years. However, all four cuspids last about 9 to 12 years. We use these teeth for tearing food.
First molar: Two first molars emerges around 13 to 19 months and two on the lower side erupt about 14 to 18 months. However, all four first molars last about 9 to 11 years.
Second molar: Two-second molars on the upper side erupt around 25 to 33 month, and two on the lower side emerge about 23 to 31 month. However, all four-second molars last about 10 to 12 years.
However, the two lower central incisors are first to erupt. All 20 primary teeth erupt in the mouth from the age of 21/2 to 3 years.
Facts about primary tooth eruption
Here we are going to show you six facts about primary tooth eruption.
- Approximately four teeth will erupt for every six months of life.
- In tooth eruption, girls precede boys.
- Upper teeth erupt after lower teeth.
- Teeth erupt in pairs.
- Primary teeth are whiter and lighter than permanent teeth.
- All the primary teeth erupted by the time of 2 to 3 years.
Permanent dentition stage
The permanent dentition stage starts when the last primary tooth is lost. Below we are going to discuss when permanent teeth erupt. There are 32 permanent teeth including:-
Central incisors: Two upper central incisors erupt about 7 to 8 years, and two lower emerges around 6 to 7 years.
Lateral incisors: Two upper lateral incisors emerges 8 to 9 years and two lower erupts about 7 to 8 years.
Canines: Two upper canines erupt around 11 to 12 years and lower 9 to 10 years.
First pre-molar: Upper first pre-molars emerges 10 to 11 years and lower erupt about 10 to 12 years.
Second pre-molar: Two upper second pre-molar emerges 10 to 12 years and lower erupt about 11 to 12 years.
First molar: All four first molars erupt around 6 to 7 years.
Second molar: All four-second molars erupt about 12 to 13 years.
Third molars: All four third molars emerge around 17 to 21 years.
First permanent molars are the first to emerge in some children while in others, the incisors are the first to erupt. However, 28 permanent teeth will be in place at the age of 13.
So here in this article, we tried to discuss the whole tooth eruption chart. However, these teeth of different sizes and shapes help us to chew, smile and speak. We hope that information about tooth eruption chart is enough for your preference.