At about 6-8 months, the two lower front teeth (central incisors) will erupt, followed shortly by the two upper central incisors. The remainder of the baby teeth appears during the next 18 to 24 months. At 2 to 3 years, all 20 of the primary teeth should be present.
The first permanent teeth begin to erupt at about age five to six and include molars behind the back baby teeth along with lower central incisors. Some permanent teeth replace baby teeth and some don’t. This process will continue until approximately age fourteen.
The pace and order of their eruption may vary, so don’t be alarmed if some teeth are a few months early or late. All children have unique eruption patterns.