Objective: three dimensional resorption of the post-extraction site after tooth loss can lead to se vere atrophies of the residual ridge.
Planning an appropriate implanto-prosthetic treatment from the functional and aesthetic rehabilitation point of view, narrows considerably implant placement without prior aug mentation.
Materials and methods: there are different types of bone grafting techniques which work best in comparison with traditional augmentation techniques.
Using ultrasonic surgery we can harvest bone blocks intra-oral from the zygomatic but tress, mandibular body, mandibular ramus, symphysis or lateral wall of the sinus.
Results: intra-oral harvesting of veneer cortical block grafts in addition with the sandwich aug mentation has better results than the cortico-cancelous bone blocks, obtaining a faster integration of the graft, with less morbidity and reduced risks.
Conclusion: increasing success in oral implantology is influenced, in addition to surgical experience, by the quality of materials and instruments used.