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The differences in sizes, shape and location in the jaw enable the teeth to work together to chew snacks, speak, smile, and give the face its shape and form.²

A child usually has 20 primary teeth, which start to erupt at about 6 months of age until 3 years old and fall out starting 6 years old until 12 years of age. By the time the chid is a teenage, he will have his 32 permanent adult teeth.¹

Below is the approx. age where primary teeth erupt and fall out:^1,2

1. Lower central incisors erupt between 6-10 months old and fall out at the age of 6-7 years old
2. Upper central incisors erupt between 8-12months old and fall out at the age of 6-7 years old
3. Lower lateral incisors erupt between 10-16 months old and fall out at the age of 7-8years old
4. Upper lateral incisors erupt between 9-13 months old and fall out at the age of 7-8years old
5. Upper first molars erupt between 13-19 months old and fall out at the age of 9-11 years old
6. Lower first molars erupt between 14-18 months old and fall out at the age of 9-11 years old
7. Upper canine erupt between 16-22 months old and fall out at the age of 10-12 years old
8. Lower canine erupt between 17-23 months old and fall out at the age of 9-12 years old
9. Lower second molars erupt between 23-31 months old and fall out at the age of 10-12 years old
10. Upper second molars erupt between 25-33 months old and fall out at the age of 10-12 years old

Dr. Massoud Abou Zeid

Pediatric, Neonatologist 

¹https://www.healthline.com/health/childrens-health/baby-teeth-fall-out

²https://www.mouthhealthy.org/en/az-topics/e/eruption-charts