Childrens teeth

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Dental health and your child’s teeth

From the first baby teeth poking through, to milk teeth falling out and adult teeth growing in their place, a lot goes on in the mouth over a lifetime.

Teeth grow and fall out at different times for each child, but the first teeth begin to break through the gums at about 6 months of age.

Usually, the first two teeth to erupt are the two bottom central incisors (the two bottom front teeth). Next, the top four front teeth emerge. After that, other teeth slowly begin to fill in, usually in pairs – one each side of the upper or lower jaw – until all 20 teeth (10 in the upper jaw and 10 in the lower jaw) have come in by the time the child is 2 ½ to 3 years old. The complete set of primary teeth is in the mouth from the age of 2 ½ to 3 years of age to 6 to 7 years of age.

 

Primary teeth development chart

Upper teeth When tooth emerges When tooth falls out
Central incisor 8 to 12 months 6 to 7 years
Lateral incisor 9 to 13 months 7 to 8 years
Canine (cuspid) 16 to 22 months 10 to 12 years
First molar 13 to 19 months 9 to 11 years
Second molar 25 to 33 months 10 to 12 years
     
Lower teeth    
Second molar 23 to 31 months 10 to 12 years
First molar 14 to 18 months 9 to 11 years
Canine (cuspid) 17 to 23 months 9 to 12 years
Lateral incisor 10 to 16 months 7 to 8 years
Central incisor 6 to 10 months 6 to 7 years

 

Other primary tooth eruption facts:

  • A general rule of thumb is that for every 6 months of life, approximately 4 teeth will erupt.
  • Girls generally precede boys in tooth eruption
  • Lower teeth usually erupt before upper teeth
  • Teeth in both jaws usually erupt in pairs – one on the right and one on the left
  • Primary teeth are smaller in size and whiter in colour than the permanent teeth that will follow
  • By the time a child is 2 to 3 years of age, all primary teeth should have erupted

Shortly after the age of 4, the jaw and facial bones of the child begin to grow, creating spaces between the primary teeth. This is a perfectly natural growth process that provides the necessary space for the larger permanent teeth to emerge. Between the ages of 6 and 12, a mixture of both primary teeth and permanent teeth reside in the mouth.

Why is it important to care for baby teeth?

While it’s true that baby teeth are only in the mouth for a few years, they play a vital role.

  • They reserve space for their permanent counterparts.
  • They give the face its normal appearance.
  • They aid in the development of clear speech.
  • They help attain good nutrition (missing or decayed teeth make it difficult to chew causing children to reject foods).
  • They help give a healthy start to the permanent teeth (decay and infection in baby teeth can cause damage to the permanent teeth developing beneath them).

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