Primary teeth are important for eating, appearance and speech as well as for guiding permanent teeth, which develop underneath them, into their correct positions.
Lower incisors are usually the first teeth to erupt at about 6 months. All 20 primary teeth are usually in the mouth between 2 and 2.5 years of age.
All 20 primary teeth fall out.
The primary molars, usually the last primary teeth to fall our, normally remain in the mouth up to about age 12 years.
There are 32 permanent teeth including 4 wisdom teeth
The first permanent teeth to erupt (from as early as age 5 years) are the 4 first permanent molars behind the last primary teeth. Parets should be particularly vigilant and look out for the arrival of these tooth to ensure that they are brushed.
Permanent incisors erupt between ages 6 and 9 years.