Forced orthodontic extrusion of hopeless teeth is reportedly an effective method of augmenting bone in sites where alveolar ridge defects preclude correct implant placement.
As long as at least one-fourth to one-third of the apical attachment remains intact, the attachment apparatus can be used to develop the bone and gingiva in a vertical direction.
The tooth is extracted once the desired change in the ridge shape has been achieved. The increased volume of the osseous structure will allow the implant to be placed in the correct position, while the soft tissue altered by the forced eruption will match the gingiva around the adjacent natural teeth, or may be surgically adapted to achieve an esthetic appearance.
G. Zuccati, Bocchieri A. Implant site development by orthodontic extrusion of hopeless teeh.
Journal of clinical orthodontics; 37:307-311, 2003