้henry and Post
[63] suggested delayed extraction of the mesiodens
about the age of 10 when the apex of
the central incisor nearly forms. If treatment is
postponed after this age, more complex surgical
and orthodontic treatment may be necessary.
The type and position of the unerupted
tooth, the space available in the dental arch, in
addition to the stage of root development may
influence how long it takes for an impacted
tooth to