The first permanent molars usually come in between the ages of 6 and 7 years old. These molars are the first permanent teeth to come in and are located in the back of the mouth behind the baby teeth. They do not replace any baby teeth but instead increase the total number of teeth from 20 to 24. Other permanent teeth, such as the incisors, canines, and premolars, erupt into the spaces left by the deciduous teeth that have exfoliated (fallen out/lost) . The timing for when the permanent teeth come through can differ, but the order and rough timeline for each type of permanent tooth is generally consistent. Here is a rough timeline for each type of permanent tooth:

• First molars – between 6 and 7 years.
• Central incisors – between 6 and 8 years.
• Lateral incisors – between 7 and 8 years.
• Canine teeth – between 9 and 13 years.
• Premolars – between 9 and 13 years.
• Second molars – between 11 and 13 years.
• Third molars (wisdom teeth) – between late adolescence and early adulthood.