Late development of permanent teeth

Most children begin to develop permanent teeth or adult dentition between the ages of 6 and 7 years. The first 28 of these teeth usually end up dating at age 13. These include the four incisors, four canines, four lateral incisors, eight premolars and eight molars. The last teeth that develop are called wisdom teeth. Some children experience delayed eruption of permanent teeth. There are many factors that can influence the eruption of permanent teeth. If you are concerned about your child’s dental development, consult your pediatrician or dentist to rule out a medical problem.

Hereditary factors

One of the common factors that influence the development of a child’s permanent teeth is genetics. In some children the first permanent tooth leaves at age 5, while others may not experience the same until 7 years. This may be due in large part to genetics; and is perfectly normal for your family given its history and genetic makeup. If you have lost your baby’s teeth late in life, the odds may be the same for your children. If you and your partner have mixed results, then you do not know what can happen when your child’s teeth are ready to begin to become permanent.

Premature birth

According to a report by the American Dental Association and the World Health Organization, babies born prematurely before 37 weeks of gestation may be at increased risk for late development of teeth and eruption of permanent teeth than babies born to term. This difference was found only among children who were less than 6. Among children older than 9 years, development of the tooth usually began to normalize, ie at the time the most preterm babies were 9 years or older, Dental development returned to a period of normal growth.


Gender can also influence the development of permanent dentition. Girls tend to develop permanent teeth faster than males, anywhere from four to six months faster, especially permanent cannines. Other teeth that may be affected are the central incisors and the lateral ones.

Physical factors

Physical factors can also influence the permanent development of teeth and cause delays. Injuries to permanent teeth, or to the gums and mouth can cause delays in the eruption of permanent teeth. Systemic conditions that include diseases such as anemia or iron deficiency in the blood may contribute to late dental eruption. Malnutrition or eating habits may also contribute to the increased likelihood of late dental eruption, and socioeconomic factors may play their role of influence in this regard. The less quality food children eat, the greater the likelihood of late eruption of permanent teeth.