Which of the following are the first incisors to erupt in an infant –
4-7 months old: The first baby teeth usually begin to break through (erupt) the gums at around 6 months old.
This can occur anywhere between four and seven months.
As a general rule, the first teeth to erupt are the two in the front bottom.
These are called the lower central incisors.
Lower central
Lower lateral
Upper central
Upper lateral
Lower central