Abnormal Order of Primary Tooth Loss in Children

Question

After a child has grown two teeth, there is a long period without any other teeth coming in. Is this a normal phenomenon? Do they need to see a doctor?

Answer

During the tooth replacement period in children, typically around the age of 6, the first permanent molar, also known as the six-year molar, will emerge behind the last primary molar. Subsequently, the primary lower central incisor will fall out around the age of 6, and the permanent lower central incisor will grow in. At 7 to 8 years old, the primary upper central incisor will fall out, and the permanent upper central incisor will grow in, followed by the primary lower lateral incisor falling out and the permanent lower lateral incisor growing in. Between 8 to 9 years old, the second primary molar and second primary canine will fall out, and the second permanent canine will grow in. From 10 to 12 years old, the primary canines will fall out, and the permanent canines will grow in. If a child’s order of primary tooth loss does not match the above situation, it may be necessary to consult a doctor to determine if further examination or treatment is required.