Carl Cha tfield is a certified Project Management Professional (PMP) with extensive knowledge of Microsoft Office Project as well as specific usability issues. Timothy Johnson has previously worked as an Office Project support professional for several years. Tim possesses in-depth technical knowledge about the software.
The complete set of primary teeth is in the mouth from the age of 2 Â½ to 3 years of age to 6 to 7 years of age. Other primary tooth eruption facts: A general rule of thumb is that for every 6 months of life, approximately 4 teeth will erupt.
The teeth on the upper jaw usually erupt one to two months after the same tooth on the lower jaw. There are a total of 20 primary teeth. Usually, about one tooth erupts per month once the teeth have started coming in. There is normally a space between all the baby teeth.