The time of eruption of permanent teeth in the children between the ages of 7 to 8 vary greatly. Such eruption time deviations result from both general and site related factors. The research involved determining the time of permanent teeth eruption in the early mixed dentition based of the results of the preventive examination of the children of Yekaterinburg. There were determined certain deviations from the average time of teeth eruption which is indicative of the necessity to update the relevant information about every region of the country. Some gender differences in permanent teeth eruption are also noteworthy. Earlier permanent teeth eruption is more characteristic of girls rather than boys. asymmetric eruption of the upper incisors is typical of all children. Supervising permanent teeth eruption and dental occlusion formation plays a pivotal role in the work of a pediadontist and children’s orthodontist.
mixed dentition, time of eruption, eruption deviation, retention