abnormal tooth eruption
Introduction
Introduction More common in permanent teeth, because permanent teeth are more affected by deciduous teeth, such as deciduous teeth or early loss, trauma and so on. Common eruption abnormalities are: early teeth sprouting, eruption and ectopic eruption.
Cause
Cause
The cause of abnormal tooth eruption
Congenital or hereditary tooth development disorders, trauma, infection and other factors cause abnormal teeth eruption.
Examine
an examination
Related inspection
Oral endoscopic pulp vitality measurement oral X-ray examination
Abnormal examination of tooth eruption
Normal tooth development criteria:
The deciduous teeth begin to appear 5 to 10 months after birth, and all belong to the normal range. Usually 8 teeth at 1 year old, 20 deciduous teeth in 20-30 months, after 6 years old, they will change to permanent teeth, and grow the first permanent molars. After 12 years old, the second permanent molars will grow, to 12~ 15 years old with 28 permanent teeth. The third permanent molar usually grows out at the age of 17-30, called wisdom teeth (wisdom), and there are also people who never live. The number of teeth in normal children from 6 to 24 months can be calculated by the formula: number of teeth = month age -4 (or 6)
The order of pediatric deciduous teeth:
1-1, 6 to 8 months;
2-2, 3-3, 8 to 10 months;
44, 55, 66, 12 to 15 months;
77, 88, 18 to 14 months;
9-9, 10-10, 20 to 30 months.
Diagnosis
Differential diagnosis
Abnormal confusing symptoms of tooth eruption
Pain in the teeth: Pericoronitis is a complication caused by the inconsistent position of the molars, mainly due to the pain of soft tissue around the crown. The third molar of the mandible (commonly known as wisdom tooth) is more common in clinical practice. Secondly, the maxillary third molar can also occur. The disease mostly occurs between the ages of 18 and 30.
Delayed sprouting: The newborn has no teeth. The deciduous teeth begin to erupt 4 to 10 months after birth. The late ones can reach 10~12 months. After 12 months, the sprouts are delayed. The early and late eruption of teeth is not an important indicator to measure the baby's growth and development. Generally speaking, the morning and evening of a child's teething is mainly determined by innate factors. Some children can start teething at 4 months, and some children have just erupted their first deciduous teeth in 10 months. Even after 10 months, the deciduous teeth are still not erupted and need not be nervous. As long as the body has no other diseases, it is not very important to postpone the first deciduous teeth until the age of one year.
Abnormal teeth: The development of human teeth is a complex and lengthy process. In this long process, various unfavorable factors inside and outside the body can cause different types of developmental abnormalities in different stages of tooth development, such as abnormal teeth eruption, abnormal number, abnormal morphology and abnormal tooth structure.
