Is it a normal sign to a 5 year old girl ( 4.11 months exactly ) moving of lower incisors n getting a new teeth???? Normally the age of getting a new teeth is 7 years isn't it??

A. Children usually lose their first tooth around 5 or 6 years old. But every child is unique. Some will lose their first tooth as early as 4 years old or as late as 7 years old.