The best age to treat orbital condition is when the person has not reached puberty because in this case the jaw continues to grow and it is very easy to correct the defect. Because girls reach puberty earlier and boys reach puberty a little later, treatment is for girls before the age of 10 and for boys before the age of 12.
Do not forget that the orthodontist must examine the child to determine the appropriate time for treatment, according to the type and severity of the defect. It is not always possible to establish an exact age for treatment and it can be altered by various factors. Numerical age is not always the criterion for choosing the right time to treat an overbite, and the orthodontist will consider other specialized factors to start orthodontic treatment