For many babies, first tooth may appear around six months of age and is usually the lower central incisor. By the time she or he reaches 24 to 30 months old, she or he should have all 20 teeth. A general formula can be used to calculate the number of teeth your baby should have is:
no of teeth = age of the baby (in months) - (4 or 6).
Once the teeth start to appear, they will usually come at a rate of 1 per month and follow a certain order:
1. Two lower central incisors will appear first, followed by the two upper incisors when the baby is about 8 months of old.
2. The four sides incisors will appear by the time the baby is about 1 year old.
3. Four back molars or chewing teeth will appear when the baby is about 14 months old.
4. Four canines (pointed teeth) will appear when the baby reaches 20 months old.
5. Four more back molars appear between 24 months to 30 months.
Take note that the above information is only the average time of appearance of teeth. It is normal to see babies with teeth at the age of 2 months and or no tooth at the age of 10 months. However, parents are advised to bring their children to dentist if the concerned child still does not have any teeth after 1 year old.
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