If you lose your teeth at the age of 8 and don’t grow them for 10 months, it may be due to abnormalities in tooth eruption or congenital absence of frontal teeth, so it is recommended that you go to the hospital to check the specific development of your teeth. Generally, children start to change their teeth around the age of 5-7 years old, and around the age of 8 years old, it may be the incisors or lateral incisors, if the permanent teeth do not erupt after a long period of time after the loss of milk teeth, it may be the abnormal eruption of the teeth or congenital lack of frontal teeth. You can go to the hospital to take dental radiographs to check whether there are tooth germs. If there are tooth germs, it may be anomalous tooth eruption, which can be assisted by surgery or orthodontic methods. If the tooth germ is missing, it may be a congenital missing front tooth, which requires orthodontic treatment at a later stage depending on the situation.