Short implants and mandibular bone augmentation. There are cases in which, due to a tooth loss, the bone will gradually be reabsorbed, reaching a point where inserting conventional implants can be a complicated procedure and sometimes can not be performed due to the lack of bone. One option to solve this problem is to use short implants, which avoids having to regenerate the area previously with grafts. Another option is to place a block graft, which will be fixed to the bone with fixation screws. After 4-6 months, the bone graft will be integrated and remodeled. At this time it will be possible to place longer implants.