The lower front teeth are crowded inward (Figures A & B) since the dental arches are too narrow.

It is obvious on the lower arch but the upper arch is too narrow as well (Fig. C and D show the laterals growing outside of the arch).

If left with out intervention, the permanent teeth will develop into an insufficient bony matrix, and the child may have permanently crooked teeth. Or, if orthodontic treatment should take place, later in severe cases, removal of the permanent teeth may be recommended by some dentists to make room.

We believe in preserving all the permanent teeth. Guiding the teeth into the right position as they erupt creates more stability than repositioning them later when they are already misaligned.

In Figures E & F, a Crozat appliance is used to orthopedically (i.e. stimulating the bone around the teeth ) develop the dental arches to include all the teeth inside the dental arches .