Autogenous bone: is it still the gold standard?
Specific Treatment Considerations. When the height of the residual bone in the posterior maxilla is considered insufficient for reliable implant placement, a sinus grafting procedure is considered the treatment of choice. Cawood and Howell in their classification of resorption patterns demonstrated bone resorption develops tridemensionally. Additionally, the atrophic posterior maxilla should be evaluated and classified in terms of not only the residual bone height and width, but also the residual vertical and horizontal intermaxillary relationship, because if sinus grafting is only performed and there is tridimensional bone loss, the implants may be placed in a palatal position. Correction of deficient ridges to achieve an optimal prosthetic result can be performed in different ways. It is essential to define the final prosthetic objective using clinical, radiographic and laboratory information prior to selecting the most adequate surgical procedure.