After toot extraction can be measured up to 50% reduction in the horizontal and vertical bone within the first 3 months. A variety of factors can effect the dimension (width and heigh) of the bone after tooth extraction. Immediately after tooth extraction a blood clot develops in the alveole and stimulates new bone formation within the alveolar walls. This healing process never leads to a complete restoration of the original alveolar bone. This can lead to ridge deformation and other complications.